C10h12o2 Nmr

Teaching and interpreting spectra may however be challenging. ContentsExperimental Melting Point:Experimental Boiling Point:Experimental LogP:Experimental Flash Point:Experimental Gravity:Experimental Refraction Index:Appearance:Safety:Retention Index (Kovats):Retention Index (Normal Alkane):Retention Index (Linear): Molecular Formula C10H12O2 Average mass 164. 149 1-Propanol C3H8O C4H8O2 1,4-Dioxane 95. The Organic Chemistry Tutor 219,267 views. 9, CHCH at 2. 1H (200 MHz) NMR spectra were recorded on a BRUKER-AC 200 MHz. A menopausal hot flush (MHF) is a sudden and transient onset of erythema and warmth or burning sensation on the face and skin of the neck which appears during the transition to (pre-menopausal and peri-menopausal), and through, menopause (menopausal and post-menopausal) [1,2]. And let's start by calculating the hydrogen deficiency index. 2,4-diisopropylidene-cyclobutane-1,3-dione - C10H12O2, synthesis, structure, density, melting point, boiling point. I'm thinking another double bond, probably in some carbonyl, + with 2 oxygens, maybe that makes it an ester?. Starkey, Organic Chemistry Lab CHM 318L 1H NMR Chemical Shifts 11 10 9 8 7 6 5 4 3 2 1 0 RH O H R 2CCR H ROCH 3 CH 3 RCH 3 O RH CH 3 CH NH OH RNH 2 O NH 2 RNH 2 ROH O OH ROH δ (ppm). Interpreting a NMR Spectrum. 499-44-5: Synonyms: 2-Hydroxy-4-isopropyl-cyclohepta-2,4,6-trien-1-one; 2-Hydroxy-4-(1-methylethyl)-2,4,6-cycloheptatrien-1. Pattekhan, H. 830 1-Nitropropane C3H7NO2 C3H8O 1-Propanol 97. web; books; video; audio; software; images; Toggle navigation. , Fuganti, C. 9 alkyl (methyl) 1. 0 °C at 760 mmHg Flash Point 101. And let's start by calculating the hydrogen deficiency index. If you are given the chemical formula calculate the degrees of unsaturation: °unsaturation = pi − bonds + rings = C + 1 − H + X − N 2 ∑ hint: four or more °unsaturation often implies the presence of an aromatic ring 2. The following steps summarize the process: Count the number of signals to determine how many distinct proton environments are in. Eugenol is a member of the phenylpropanoids class of chemical compounds. 13C NMR ( , ppm): 11, 22, 67, 128, 130, 131, 133, 167. C10H12O2: Exact Mass: 164. The mass spectral data (m/z 192) further confirmed the structure of the compound 16. 11830999999999 1 100. A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules 4-isopropylbenzoic Acid (C10H12O2) 4-isopropylbenzoic Acid bmse000662 - Data. 109340000000003 1 171. Where do you expect to see the signal if a 300-MHz instrument is used instead?A) 3. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. A Guide to Solving NMR Problems NMR spectroscopy is a great tool for determining structures of organic compounds. These masses can be used to identify peaks in high-resolution mass spectra of water or soil samples. In this document we show how you use these features together to assign structures from 1H and 13C. NMR-basics. Log in or sign up to leave a comment log in sign up. It derives from a 2-phenylethanol. Phenylpropanes are organic compounds containing a phenylpropane moiety. Interpretation of spectra is a technique that requires practice - this site provides 1 H NMR and 13 C NMR, DEPT, COSY and IR spectra of various compounds for students to interpret. 0 Alkane, secondary 2-CH- 1. Eugenol: Description: Eugenol is an allyl chain-substituted guaiacol, i. Table of Characteristic Proton NMR Shifts type of proton type of compound chemical shift range, ppm RCH 3 1˚ aliphatic 0. 2-Hydroxy-2-methyl-1-phenyl-1-propanone - chemical information, properties, structures, articles, patents and more chemical data. 等価なプロトンの化学シフト値は同じである。. We provide a wide range of solvents with extremely low residual water, excellent chemical purity, and the highest isotopic enrichment available. More information on the manner in which spectra in this collection were collected can be found here. Aldrich Chemistry offers the widest selection of solvents, tubes and accessories to meet all of your NMR needs. To answer each question enter a number or letter in the designated answer box. Proton NMR Spectroscopy The characteristic NMR absorption common to both aldehydes and ketones is that of the pro-. Discusses chemical shift, integration, and simple splitting patterns. 642 C6H6 Benzene 77. Log in or sign up to leave a comment log in sign up. Ion Molekul Massa relatif Senyawa. 2 g/mol: Density: 1. Entry DOI:. from Human Metabolome Database (HMDB) Expand this section. Reference data were obtained primarily from the PubChem database. No calendars exist, or you don't have permission to view any of them Brown Bear Software. HOMEWORK PROBLEMS: IR SPECTROSCOPY AND 13C NMR 1. Start studying Ch. Senyawa eugenol yang mempunyai rumus molekul C10H12O2 mengandung beberapa gugus fungsional yaitu alil (-CH2-CH=CH2), fenol (-OH) dan metoksi (-OCH3), sehingga dengan adanya gugus tersebut dapat memungkinkan eugenol sebagai bahan dasar sintesis berbagai senyawa lain yang bernilai lebih tinggi seperti isoeugenol, eugenol asetat,isoeugenol asetat. 1H NMR: δ 0. Methyl 3-phenylpropionate 103-25-3 NMR spectrum, Methyl 3-phenylpropionate H-NMR spectral analysis, Methyl 3-phenylpropionate C-NMR spectral analysis ect. Predict 1D 13 C NMR spectra. 13C Nuclear Magnetic Resonance (NMR) Chemical Shifts of Eugenol with properties. 1038/sdata. d INSIDE -2. The normal carbon-13 NMR spectral results are tabulated along with the DEPT-135 and DEPT-90 information. If your answer is illegible or outside the box, it will not be graded. Entry DOI:. 1-butyne and 2-butyne. Aldrich Chemistry offers the widest selection of solvents, tubes and accessories to meet all of your NMR needs. Interpreting a NMR Spectrum. 17, 2H, doublet; 7. Specification Assay : 97+% (NMR) Manufacturer : FUJIFILM Wako Chemical Corporation Storage Condition : Keep at RT. NMR N uclear M agnetic R esonance. The NMR tells me that part of the molecule is probably CH3CH2CH2-, but. H NMR Spectroscopy Review - Examples & Multiple Choice Practice Problems - Duration: 28:29. 0 ppm with an integration of 1H, and sextet at 3. Solving NMR Structures Step by Step. While doing this experiment, please keep in mind that due to acidic functional groups your IR, 13C NMR, or 1H NMR values may be somewhat off. L'eugenolo è un membro della classe degli allilbenzeni. 4 ppm with an integration of 4H, a singlet at 3. , and 53, 27, 12 in the aliphatic region. This page includes information about naming esters with examples of molecular structures of esters. Click on a number to view the spectral data for each compound. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Proton NMR practice 3 About Transcript More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. ULM-6875-1. NMR Practice Problems 1) Tell precisely how you would use the proton NMR spectra to distinguish between the following pairs of compounds: a. 9 R 2 CH 2 2˚ aliphatic 1. MF: C10H12O2, MW: 164. Propose a structure for this compound. Deduce the structure of the compound from these data. The H NMR spectrum of bromoethane shows a signal at 3. Question: Given The Molecular Formula Of C10H12O2, IR, Proton NMR, And Carbon NMR, What Would Be The Structure Of This Compound? I Know It Has An Unsaturated Degree Of 5 And Has An Aromatic Ring. The NMR spectra on this page have been produced from graphs taken from the Spectral Data Base System for Organic Compounds ( SDBS) at the National Institute. , and Zucchi, G. Entry DOI:. 9 ppm with area of 2H, and 3 lines grouped around 3. Senyawa eugenol yang mempunyai rumus molekul C10H12O2 mengandung beberapa gugus fungsional yaitu alil (-CH2-CH=CH2), fenol (-OH) dan metoksi (-OCH3), sehingga dengan adanya gugus tersebut dapat memungkinkan eugenol sebagai bahan dasar sintesis berbagai senyawa lain yang bernilai lebih tinggi seperti isoeugenol, eugenol asetat,isoeugenol asetat. Eugenol is a member of the allylbenzene class of chemical compounds. The presence of the parent ion at ~/e 1614 in the mass spectrum plus NIiIR data suggests a molecular formula of C10H12O2 for the hydrolysis product. Lepidoptera, Agaristidae : Phalaenoides glycinae P ¦Category of the chemical. This set index page lists chemical structure articles associated with the same molecular formula. 規格含量 : 97+% (nmr) 製造元 : 富士フイルムワコーケミカル(株) 保存条件 : 室温 cas rn ®: 480-63-7 分子式 : c10h12o2 分子量 :. Molecular formula 2 x Empirical formula – C10H12O2 Infrared – C=O and O-H (carboxylic acid broad peak) were present NMR – D2O removed the carboxylic acid proton, 4 protons in a Benzene environment, CH3 in a benzene environment attached. Ion Molekul Massa relatif Senyawa. Last updated on: 05 January 2017. Eugenol is a member of the phenylpropanoids class of chemical compounds. NMR spectroscopy is certainly the analytical methodology that provides the most information about a molecule. ContentsExperimental Melting Point:Experimental Boiling Point:Experimental LogP:Experimental Flash Point:Experimental Gravity:Experimental Refraction Index:Appearance:Safety:Retention Index (Kovats):Retention Index (Normal Alkane):Retention Index (Linear): Molecular Formula C10H12O2 Average mass 164. 20 Eugenol, 98% Appearance :Colorless to yellow to amber liquid NMR :Conforms to structure GC :≥98%. Biasanya dihunakan untuk mengidentifikasi atau menjelaskan informasi struktur rinci tentang senyawa kimia. 3ppm and the CH 3 a triplet at 1. 7δ (doublet, I = 2H), 9. Chem 341 Final Exam 13 December 1999 page 8 of 10 Prof. Start studying Chemistry. com Abstract Opening of epoxides with various S-alkylisothiouronium salts as thiol equivalent in water has. NMR spectroscopy is certainly the analytical methodology that provides the most information about a molecule. Title: SDBS-91: Subtitle: eugenol: Type: Collection of Spectral data: Subject: Chemical Compound: SDBS No: 91: DOI: URL: https://sdbs. For a compound with formula C a H b N c O d X e where X is F, Cl, Br or I, the degree of unsaturation is given by: degree of unsaturation = 1/2 (2 + 2a - b + c - e). And let's start by calculating the hydrogen deficiency index. 7, another CH at 3. Ein Doppelbindungsäquivalent entspricht einer Doppelbindung bzw. NMR Solvents and Consumables. in Panchkula-call-girl Chandigarh @. Scroll to see the various user-contributed spectra (UV-vis, IR, NMR, MS); click on the spectrum icon to open the spectrum in Java. China Ketone manufacturers - Select 2020 high quality Ketone products in best price from certified Chinese Chemicals manufacturers, Industrial Grade suppliers, wholesalers and factory on Made-in-China. A menopausal hot flush (MHF) is a sudden and transient onset of erythema and warmth or burning sensation on the face and skin of the neck which appears during the transition to (pre-menopausal and peri-menopausal), and through, menopause (menopausal and post-menopausal) [1,2]. 1, IR absorption at 1780 cm1, and the following NMR spectrum: d 2. 830 1-Nitropropane C3H7NO2 C3H8O 1-Propanol 97. Post navigation. , Fuganti, C. jp/sdbs/cgi-bin. Interpretation of spectra is a technique that requires practice - this site provides 1 H NMR and 13 C NMR, DEPT, COSY and IR spectra of various compounds for students to interpret. 072: Boling Point: 130℃ (0. Reference data were obtained primarily from the PubChem database. NMR N uclear M agnetic R esonance. 大学有机化学推断结构试题(b)及答案解析. The infrared and 1 H nmr spectra of a compound with molecular formula C 10 H 12 O 2 are shown below. 98% * For isotopically labeled. Teaching and interpreting spectra may however be challenging. It inhibits cell proliferation, invasion and migration and induces apoptosis in glioma cells. Moreover a tripple bond can be regarded as DBE=2. 丁香酚,分子式为c10h12o2,是无色或苍黄色液体,有强烈的丁香香气,不溶于水。主要用于抗菌, 降血压;也可用于香水香精以及各种化妆品香精和皂用香精配方中,还可以用于食用香精的调配。. Benzyl glycidyl ether | C10H12O2 - PubChem. Original Poster Score hidden · just now. Applications include the study of biomolecule:ligand complexes, free energy calculations, structure-based drug design and refinement of x-ray crystal complexes. -3-AZEOTROPIC DATA FOR BINARY MIXTURES (continued) Molecular formula Name taz/°C x1 C6H14 Hexane 51. Chemical Purity. d OUTSIDE 9. 2-Phenylethyl acetate is found in apple. The 1H-NMR spectrum below is most likely of: Note: The proton NMR data (including the relative integration) are as follows: the doublet at 7. 等価なプロトンの化学シフト値は同じである。. 化合物的ir,1h nmr,13c nmr,ms谱图 6 2017-12-26 已知某化学物的分子式为C10H12O2,其核磁共振图谱如下 7 2015-02-08 下列化合物的1H-NMR谱图中吸收峰数目正确的是( )A.. Molecular formula 2 x Empirical formula - C10H12O2 Infrared - C=O and O-H (carboxylic acid broad peak) were present NMR - D2O removed the carboxylic acid proton, 4 protons in a Benzene environment, CH3 in a benzene environment attached. The proton NMR spectrum for a compound with formula C 10 H 12 O 2 is shown below. website to find more information like suppliers, MSDS, infra-red (IR), nuclear magnetic resonance spectra (NMR), bp, mp, nd20, molecular formula (MF), molfile, sdf file, structure, 3d model. 95 (t, 9 H, J = 7. Deduce the structure of the compound from these data. Phone: 1-858-635-8950 Fax: 1-858-635-8991 Email: [email protected] You may also DRAG / DROP a molfile ! You will get an interactive NMR spectrum. 08 (for NMR Spectroscopy) 14310. The NMR spectra are shown in parts a, b, c, and d for four isomeric compounds with formula C10H12O2. *Please select more than one item to compare. Proton NMR Spectroscopy The characteristic NMR absorption common to both aldehydes and ketones is that of the pro-. 13 and 14 Cengage Questions. The Markovnicov product is the expected product Predict a proton NMR for the product:. 00 1 lit Volumetric Solution Nist Traceable 800280 Acetic Acid Solution 3% 108. com Abstract Opening of epoxides with various S-alkylisothiouronium salts as thiol equivalent in water has. save hide report. 8 ppm with an integration of 1H. 00 500 ml Assay 4. NMR N uclear M agnetic R esonance. 大学有机化学推断结构试题(b)及答案解析. Natural Isotopic Abundance Mass: 164. The peak at 1720 indicates a C=O bond (carbonyl). This banner text can have markup. Exchange : DNMR Dynamic NMR NMR is a convenient way to study rate of reactions provided that the lifetime of participating species are comparable to NMR time scale (10-5 s) H H H GeMe3 H H. Title: SDBS-91: Subtitle: eugenol: Type: Collection of Spectral data: Subject: Chemical Compound: SDBS No: 91: DOI: URL: https://sdbs. 2-Phenylethyl acetate is a flavouring ingredient. HOMEWORK PROBLEMS: IR SPECTROSCOPY AND 13C NMR 1. Title: NMR Nuclear Magnetic Resonance 1 NMR Nuclear Magnetic Resonance. Identifies 3 isomers given a molecular formula using proton nmr spectra. The service was unavailable around the period 2018. Request custom packages or custom synthesis to facilitate your lab research. The allyl group should give two dd signals for the terminal protons and a ddt for another vinylic proton. d OUTSIDE 9. Introduction. 此頁由a+醫學百科用戶医者於2014年3月9日 (星期日) 16:25的最後更改。 在a+醫學百科用戶行医和a+醫學百科匿名用戶 的工作基礎上。; 本站內容由網友添加和整理,僅供學習和參考。站內信息不一定準確、全面或最新。. These methods which range from very simple to somewhat sophisticated are complimentary to one. Correct answers: 2 question: Draw the structure of a, a compound of molecular formula c10h12o2, from its ir data and 1h nmr spectrum. 化合物的ir,1h nmr,13c nmr,ms谱图 6 2017-12-26 已知某化学物的分子式为C10H12O2,其核磁共振图谱如下 7 2015-02-08 下列化合物的1H-NMR谱图中吸收峰数目正确的是( )A.. 266-268 °C Alfa Aesar: 260 °C Food and Agriculture Organization of the United Nations 1-(4-Methoxyphenyl)-2-propanone: 266-268 °C Alfa Aesar A13209: 145 °C / 25 mmHg (278. The infrared and 1 H nmr spectra of a compound with molecular formula C 10 H 12 O 2 are shown below. Aldrich Chemistry offers the widest selection of solvents, tubes and accessories to meet all of your NMR needs. However, the multiplets of the vinylic protons in the $\ce{^1H}$-NMR spectrum don't fit this compound well. Eugenol occurs in small amounts in many other essential oils. 061 C7H16 Heptane 96. (8 pts) Provide an efficient synthesis. Teknik ini bergantung pada kemampuan inti atom berperilaku seperti sebuah magnet kecil dan menyesuaikan diri dengan medan magnet eksternal. 1 核磁気共鳴スペクトルの測定には、一般にラジオ波領域の電磁波が用いられる。. 642 Propanoic acid C3H6O2 C5H5N Pyridine 148. 08373 g/mol: 1H Nuclear Magnetic Resonance (NMR) Spectrum. 5 C=C–H vinylic 4. 1, IR absorption at 1780 cm1, and the following NMR spectrum: d 2. 2-Phenylethyl acetate is found in apple. Objectif Extraire des informations spectrales la structure de la molécule H3CO O H H H H 11-12 OICh spectroscopie RMN 2 HO N CH3 H H H H H H H H H H. © 1997-2019 Combi-Blocks Inc. Specification Assay : 97+% (NMR) Manufacturer : FUJIFILM Wako Chemical Corporation Storage Condition : Keep at RT. An example of this are the spectra of chloroform and deuterochloroform-- notice that the two major differences in these spectra are (1) the disappearance of the C-H stretching (3020 cm-1) and bending (1220 cm-1) in deuterated compound and (2) a shift to the right about 20 cm-1 relative to the CHCl 3. commas or semicolons) or spaces. IR: 1680 cm–1, 2750 cm–1, 2850 cm–1 1H NMR: 1. And let's start by calculating the hydrogen deficiency index. 1) Tell precisely how you would use the proton NMR spectra to distinguish between the following pairs of compounds: a. Draw out some structural isomers of C 4 H 8 O to see if they would match the given resonance signals. NMR-Symmetry. It is a histone deacetylase inhibitor that displays anticancer activity. 76 (3H, s), 0. 2-Phenylethyl. It is also found in select cultivated Monarda fistulosa plants grown in the U. Anisotropy: Aromatic. Automatically reference everything correctly with CiteThisForMe. 4ppm) tells us that the CH 2 is connected to one of the CH 3 groups giving us an ethyl group: -CH 2 CH 3 The IR gave us the C=O which the C-NMR suggests is an acid derivative, such as an. 4-hydroxy-4-phenyl-2-butanone - C10H12O2, synthesis, structure, density, melting point, boiling point. MF: C10H12O2, MW: 164. Second: Place your student identification on your desk. 1, IR absorption at 1780 cm1, and the following NMR spectrum: d 2. Find the structure of unknown products for which you have the NMR spectrum (predicted). propanal and propanone c. 1-butyne and 2-butyne 2) Each of the following compounds exhibits a single 1H NMR peak. oil has been optimized. See prices and buy 2-Methyl-2-phenylpropionic acid, CAS no. C8h16o Unknown Identification With Ir Spectrum And H Nmr No replies found. 61 (q, 6 H, J = 7. 30 CNMR- 180 COO, 4carbons in the aromatic region, 137, 127, 128, 128. 95 (3H, t, J 5 8 Hz); d 2. NMR-basics. The splitting in a monosubstituted benzene ring is complicated, because the splittings aren't limited to neighbouring H atoms. a LU or level of unsaturation is the number of unsaturations present in a organic molecule. A Guide to Solving NMR Problems NMR spectroscopy is a great tool for determining structures of organic compounds. Molecular formula 2 x Empirical formula – C10H12O2 Infrared – C=O and O-H (carboxylic acid broad peak) were present NMR – D2O removed the carboxylic acid proton, 4 protons in a Benzene environment, CH3 in a benzene environment attached. 45, and 5H (Benzene) at 7. Please put away all other materials. 4-isopropylbenzoic Acid (C10H12O2) 4-isopropylbenzoic Acid bmse000662 - Data. 吉至试剂为您提供丁香酚,cas no:97-53-0 标准规格的高端化学试剂;能够提供多种纯度、规格的现货产品,你可以直接在线下单!. Model 3: 1H NMR Spectroscopy - Chemical Shifts NMR spectroscopy (most often 13 C and 1H, other nuclei as well) is the most powerful tool for identifying organic molecules. Reference(s) Fronza, G. Phenylethyl acetate-. 00 10 ml (1186-52-3) Assay Min. 2,4-diisopropylidene-cyclobutane-1,3-dione - C10H12O2, synthesis, structure, density, melting point, boiling point. California State Polytechnic University, Pomona Dr. You take an IR spectrum of the compound and find major peaks at 2950, 1720, and 1400 cm-1. Their infrared spectra show strong bands near 1735 cm-1. Convert the absorptions to δ units (a) 436 Hz (b) 956 Hz (c) 1504 Hz The equation to use is: ppm = shift in Hz/ strength of the NMR in MHz. It is a colorless to slightly yellow liquid with a spicy, clove odor. Hymenoptera, Formicidae, Myrmicinae, Attini : Atta sexdens rubropilosa P ¦. As you know 1H spectra have three features, chemical shift, signal intensity, and multiplicity, each providing helpful information. Chemical Purity. Chem 341 Final Exam 13 December 1999 page 8 of 10 Prof. This set index page lists chemical structure articles associated with the same molecular formula. MF: C10H12O2, MW: 164. Eugenol / ˈ j uː dʒ ɪ n ɒ l / is an allyl chain-substituted guaiacol, a member of the allylbenzene class of chemical compounds. Tugas H-NMR Qurrota-Nila Base Peak 91. 4ppm) tells us that the CH 2 is connected to one of the CH 3 groups giving us an ethyl group: -CH 2 CH 3 The IR gave us the C=O which the C-NMR suggests is an acid derivative, such as an. 信頼確保のためのヒント~ちょっと知りたい定量nmr~”のメールマガジンにご登録いた だきましてありがとうございます。第3 回目はnmr で定量ができる原理を簡単に紹介しま す。. Spektrum 1H-NMR. This banner text can have markup. +86-400-6021-666 [email protected] Impurity Peaks Are Omitted From The DEPT Data List. The NMR tells me that part of the molecule is probably CH3CH2CH2-, but. 7, another CH at 3. 2-Phenylethyl acetate is found in apple. 20100 Synonyms: Phenylacetaldehyde Ethylene Acetal ; 2-BENZYL-1,3-DIOXOLANE. C10H12O2: Molar Mass: 164. Moreover a tripple bond can be regarded as DBE=2. 分子式:C10H12O2, IR:3010,2900,1735,1600,1500 cm-1处有较强吸收峰。 NMR:δH/ppm:1. 5δ (singlet, I = 2H), 7. The isomerism in organic compounds can be classified broadly into:. 根据下列ir及nmr谱, 推测化合物结构. Introduction. Please use the form above to make an enquiry about CAS 110743-57-2, Ethanone, 1-(5-methoxy-2-methylphenyl)- (9C remembering to include the information regarding purity and the quantity you require. 066310000000001 4. In this site have a many NMR spectrum. Although, nuclear magnetic resonance (NMR) and infrared radiation (IR) are the primary ways of determining molecular structures, calculating the degrees of unsaturation is useful information since knowing the degrees of unsaturation make it easier for one to figure out the molecular structure; it helps one double-check the number of \(\pi. ; Patiny, L. The spectroscopic properties were analyzed by FT-IR, UV-vis, (1)H NMR and (13)C NMR techniques. Furthermore, a seven-line 13C NMR spectrum indicated the presence of C2 symmetry in the molecule. The mass spectral data (m/z 192) further confirmed the structure of the compound 16. Exchange : DNMR Dynamic NMR NMR is a convenient way to study rate of reactions provided that the lifetime of participating species are comparable to NMR time scale (10-5 s) H H H GeMe3 H H. 1H (200 MHz) NMR spectra were recorded on a BRUKER-AC 200 MHz. L'eugenolo è un membro della classe degli allilbenzeni. 541: Specific gravity: 1. You may use the back of test pages for scratch work. View large 3D structure. Now that we have had an introduction to key aspects of 1 H NMR spectra (chemical shift, peak area, and signal splitting), we can start to apply 1 H NMR spectroscopy to elucidating the structure of unknown compounds. Nucleic Acids. © 1997-2019 Combi-Blocks Inc. Molecular formula 2 x Empirical formula – C10H12O2 Infrared – C=O and O-H (carboxylic acid broad peak) were present NMR – D2O removed the carboxylic acid proton, 4 protons in a Benzene environment, CH3 in a benzene environment attached. View large 3D structure. NMR N uclear M agnetic R esonance. These two factors may affect the price. The spectroscopic properties were analyzed by FT-IR, UV-vis, (1)H NMR and (13)C NMR techniques. We provide a wide range of solvents with extremely low residual water, excellent chemical purity, and the highest isotopic enrichment available. A proctor will come around to check everyone’s ID. Find chemicals. 10 分 (4470) 从下列数据推测该化合物的结构, 该化合物ir谱约在3400cm-1附近有一个强吸收带, 118, 107, 79, 77, 51及39处有峰值, nmr谱数据为:. IR: 1680 cm–1, 2750 cm–1, 2850 cm–1 1H NMR: 1. jp/sdbs/cgi-bin. Molecular Weight* 164. 541: Specific gravity: 1. 013) A compound (C10H12O2), whose spectrum appears below was isolated from a reaction mixture containing2-phenylethnaol and acetic acid. C10H12O2: Physical form/odour: Colourless to pale yellow liquid; Spicy aroma: Solubility: Slightly soluble in water; Soluble in ether, most fixed oils: Solubility in ethanol: Soluble: Boiling point (°C) 119-121° (12 mm Hg) Assay min % 98%: Acid value max: 1: Refractive index: 1. Identifies 3 isomers given a molecular formula using proton nmr spectra. 8 ppmE) none of these. Eugenol is a naturally occurring phenolic molecule found in several plants such as cinnamon, clove, and bay leaves. The term unsaturation mean a double bond or a ring system. Phone: 1-858-635-8950 Fax: 1-858-635-8991 Email: [email protected] The peak at 1720 indicates a C=O bond (carbonyl). pdf), Text File (. 1-phenylethyl acetate - cas 93-92-5, synthesis, structure, density, melting point, boiling point. 13927 1 118. H NMR Spectroscopy Review - Examples & Multiple Choice Practice Problems - Duration: 28:29. 9 C=C–H vinylic, conjugated 5. Anisotropy: Aromatic. In this document we show how you use these features together to assign structures from 1H and 13C. ANSWER: A para-substituted benzene ring (two branches on opposite sides): One branch is -NHC(=O)CH3. Eugenol occurs in small amounts in many other essential oils. A compound (C10H12O2) whose spectrum is shown here was isolated from a reaction mixture containing 2-phenylethanol and acetic acid. Correct answers: 2 question: Draw the structure of a, a compound of molecular formula c10h12o2, from its ir data and 1h nmr spectrum. [The "Download" button is useful only if you have a JCamp spectra viewer application. Sue Deliveau opened a software consulting firm that immediately paid $2,000 for a computer. Starkey, Organic Chemistry Lab CHM 318L 1H NMR Chemical Shifts 11 10 9 8 7 6 5 4 3 2 1 0 RH O H R 2CCR H ROCH 3 CH 3 RCH 3 O RH CH 3 CH NH OH RNH 2 O NH 2 RNH 2 ROH O OH ROH δ (ppm). The NMR spectra are shown in parts a, b, c, and d for four isomeric compounds with formula C10H12O2. It is a clear to pale yellow oily liquid extracted from certain essential oils especially from clove oil, nutmeg, cinnamon, and bay leaf. MF: C10H12O2, MW: 164. Guidechem provides 4-(4-Hydroxyphenyl)-2-butanone chemical database query, including CAS registy number 5471-51-2, 4-(4-Hydroxyphenyl)-2-butanone MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. 16 ppm with an integration of 3H, a sextet at 1. Title: SDBS-2282: Subtitle: ethyl phenylacetate: Type: Collection of Spectral data: Subject: Chemical Compound: SDBS No: 2282: DOI: URL: https://sdbs. Eugenol: Description: Eugenol is an allyl chain-substituted guaiacol, i. d INSIDE -2. Nucleic Acids. Chemical shifts are reported in ppm from tetramethylsilane with the solvent resonance as the internal standard (deuterochloroform: ( 7. NMR Solvents and Consumables. Welcome to Spectral Database for Organic Compounds, SDBS. Moreover a tripple bond can be regarded as DBE=2. It is also found in select cultivated Monarda fistulosa plants grown in the U. 072: Boling Point: 130℃ (0. , Pedrocchi-Fantoni, G. A log Koc of 0. Initially, your reported chemical shifts supported your proposed structure 4'-ethoxyacetophenone, and I was at a real loss trying to ignore NMR data and justify IR data. Please put away all other materials. Instructions. Castillo, Luc Patiny and Julien Wist. Draw the structure of this compound. A classic herbal formula Guizhi Fuling Wan (GFW) has been used for managing menopausal hot flushes (MHFs), but the evidence across different study types has not been systematically summarized. カルボンの13c nmr (dept) スペクトル dept90°(chシグナルのみ) dept135°(ch,ch 3は上,ch 2は下向き) 通常の13c nmr. Identifies 3 isomers given a molecular formula using proton nmr spectra. 499-44-5: Synonyms: 2-Hydroxy-4-isopropyl-cyclohepta-2,4,6-trien-1-one; 2-Hydroxy-4-(1-methylethyl)-2,4,6-cycloheptatrien-1. 2-Phenylethyl acetate is a flavouring ingredient. Propose a structure for this compound. 21) Arrange the indicated bonds in decreasing (highest to lowest) order of wavenumber. Atoms that are ortho to each other split each other by about 8 Hz, those that are meta are split by about 2 Hz, and those that are para to each other split by about 0. 1 H NMR (400 MHz, CDCl 3) δ 0. Chemical shifts are reported in ppm from tetramethylsilane with the solvent resonance as the internal standard (deuterochloroform: ( 7. On this webpage we have compile many tools that allows to: Predict 1D 1 H NMR spectra. MF: C10H12O2, MW: 164. The received nuclear magnetic resonance response is very weak in signal and requires a sensitive radio receiver to pick up. from Human Metabolome Database (HMDB) Expand this section. 扫二维码下载作业帮. MF: C10H12O2, MW: 164. 3δ (triplet, I = 3H), 3. C8h16o Unknown Identification With Ir Spectrum And H Nmr No replies found. Problem: Provide a structure for the compound with molecular formula C10H12O2 and with the following spectroscopic data. Model 3: 1H NMR Spectroscopy - Chemical Shifts NMR spectroscopy (most often 13 C and 1H, other nuclei as well) is the most powerful tool for identifying organic molecules. NMR-STAR file: bmse000701. 9δ (singlet, I = 1H). | C10H12O2. 2 measures 44 mm, the triplet at d 1. Start studying Chemistry. Scroll to see the various user-contributed spectra (UV-vis, IR, NMR, MS); click on the spectrum icon to open the spectrum in Java. 0 °C at 760 mmHg Flash Point 101. 21) Arrange the indicated bonds in decreasing (highest to lowest) order of wavenumber. The proton NMR spectrum for a compound with formula C 10 H 12 O 2 is shown below. The isomerism in organic compounds can be classified broadly into:. Deduce the structure of the compound from these data. 90 ppm (2H), and the triplet at 1. The splitting in a monosubstituted benzene ring is complicated, because the splittings aren't limited to neighbouring H atoms. Determine a structure that corresponds to the NMR data given format: chemical shift (multiplicity, integration) s=singlet, d=doublet, t=triplet, q=quartet. 42:369-371. Assigning the 1H-NMR Signals of Aromatic Ring 1H-atoms Assigning 1H-NMR signals of 1H-atoms on an aromatic ring based upon their chemical shift and coupling can be accomplished in a number of different ways which will be detailed below. 061 C7H16 Heptane 96. The other branch is -OCH2CH3. It inhibits cell proliferation, invasion and migration and induces apoptosis in glioma cells. We have developed two simple nitration experiments that present the student with a puzzle and are a good exercise in 1H NMR and 13C NMR spectroscopy. Mono-Isotopic Molecular Masses: C12N14:. Original Poster Score hidden · just now. The onset commonly lasts for seconds to five minutes, but its persistence duration is unpredictable []. Pattekhan, H. 133 DBE = {[(2x10)+2]-12)}/2 = 5 > 6 C, d 7 so. Note that in the nmr spectrum, the integration has been done for you; the number of protons responsible for each of the "signals" is indicated right above it in the spectrum. © 1997-2019 Combi-Blocks Inc. C10H12O2: Exact Mass: 164. pdf), Text File (. 42:369-371. Capot Chemical CAS# 7473-98-5, 2-Hydroxy-2-methylpropiophenone. Chapter 11 Problem Set Solutions February 5, 2013 11. and steam distilled producing an essential oil. Less energy to flip nucleus More energy to flip nucleus d, ppm chemical shift C6H12O2 C3H7Br 3H 3H 2H 2H 2H C10H12O2 * *. Page 298 Odorless regioselctive ring opening of epoxides with S- alkylisothiouronium salts as masked thiols in water Rajib Panchadhayee and Anup Kumar Misra* Division of Molecular Medicine, Bose Institute, P-1/12, C. ULM-6875-1. 2-Hydroxy-2-methyl-1-phenyl-1-propanone - chemical information, properties, structures, articles, patents and more chemical data. © 1997-2019 Combi-Blocks Inc. Sodium phenylbutyrate Drug Entry Phenylbutyric acid. C10H12O2: CAS#: 101-97-3: MW: 164. 13927 1 171. (16 pts) The following is a listing of the 1H-NMR spectral data of a compound with a molecular formula of C10H12O2. 首页 作业问答 个人中心. Find the structure of unknown products for which you have the NMR spectrum (predicted). 7473-98-5 MSDS,ROS,7473-98-5 MOA,COA,SPECS,pecifications,1H-NMR,GHS,CAT #20905. Exchange : DNMR Dynamic NMR NMR is a convenient way to study rate of reactions provided that the lifetime of participating species are comparable to NMR time scale (10-5 s) H H H GeMe3 H H. dimethyl 22. 等価なプロトンの化学シフト値は同じである。. kalman problem 24. F I G U R E 3. 丁香酚,分子式为c10h12o2,是无色或苍黄色液体,有强烈的丁香香气,不溶于水。主要用于抗菌, 降血压;也可用于香水香精以及各种化妆品香精和皂用香精配方中,还可以用于食用香精的调配。. 1-bromopropane and 2-bromopropane b. d INSIDE -2. 1, IR absorption at 1780 cm1, and the following NMR spectrum: d 2. Start studying Organic Chemistry 332- Sapling Learning Ch 15. It is a clear to pale yellow oily liquid extracted from certain essential oils especially from clove oil, nutmeg, cinnamon, and bay leaf. ppt), PDF File (. 90 ppm (2H), and the triplet at 1. 至急お願いしたいです!化合物Aが C10H12O2 だとすると、どのように考えればAからGの構造がわかるでしょうか?教えていただきたいです。よろしくお願い致します。 - 化学 [解決済 - 2019/06/24] | 教えて!goo. 1-phenylethyl acetate - cas 93-92-5, synthesis, structure, density, melting point, boiling point. Item Number. Flavouring: 3,4-Dimethoxy-1-vinylbenzene: Synonym(s) 3,4-Dimethoxystyrene: Latest JECFA evaluation: 2003 (Session 61) Status of specification : Full: Information required. So far I have figured out that there are 5 degrees of unsaturation, there is no OH stretch, there is an aromatic ring, there are 3 saturated hydrogen (probably on. Draw the structure of this compound. Chem 212 Nmr Problem Set - Free download as Powerpoint Presentation (. Be the First! Request Answer Request answer! We need 3 more requests to produce the answer to this homework help question. The broadband-decoupled 13 C NMR spectral results are tabulated along with the DEPT–135 and DEPT–90 information. The peak at 1720 indicates a C=O bond (carbonyl). Entry DOI:. To answer each question enter a number or letter in the designated answer box. Home>Encyclopedia> “C10H12O2” C10H12O2. Information about naming esters is included in some school chemistry courses, such as UK A-Level organic chemistry for students. You find a bottle on the shelf only labeled C3H6O. propanal and propanone c. Furthermore, a seven-line 13C NMR spectrum indicated the presence of C2 symmetry in the molecule. 45, and 5H (Benzene) at 7. 08373 g/mol: 1H Nuclear Magnetic Resonance (NMR) Spectrum. Step 2) Reaction- We are given the compound C10H12O2 which are formed from 2-phenylethanol and acetic acid. 2-Phenylbutyric acid is used as an anticholesteremic. Request custom packages or custom synthesis to facilitate your lab research. View large 3D structure. Isomerism is the phenomenon of exhibiting two or more compounds with same molecular formula but different physical and chemical properties. The Markovnicov product is the expected product Predict a proton NMR for the product:. Westler, John L. identifies 21. The Automated Topology Builder (ATB) and Repository is intended to facilitate the development of molecular force fields for Molecular Dynamics or Monte Carlo simulations of biomolecular systems. NMR-Symmetry. (16 pts) The following is a listing of the 1H-NMR spectral data of a compound with a molecular formula of C10H12O2. Phenethyl acetate is the acetate ester of 2-phenylethanol. 47:1150-1155. You may use the back of test pages for scratch work. 2-methoxy-4-(2-propenyl)phenol. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. ContentsExperimental Melting Point:Experimental Boiling Point:Experimental LogP:Experimental Flash Point:Experimental Gravity:Experimental Refraction Index:Appearance:Safety:Retention Index (Kovats):Retention Index (Normal Alkane):Retention Index (Linear): Molecular Formula C10H12O2 Average mass 164. (a) C4H8O: IR 1720, 2710 cm1 NMR in Fig. Labeled CAS# NA. 1H (200 MHz) NMR spectra were recorded on a BRUKER-AC 200 MHz. 11830999999999 1 171. 2 measures 44 mm, the triplet at d 1. NMR-basics. BMRB entry bmse000701. 2 Alkane, tertiary CH. C8h16o Unknown Identification With Ir Spectrum And H Nmr No replies found. The 1H-NMR spectrum below is most likely of: Note: The proton NMR data (including the relative integration) are as follows: the doublet at 7. Structure Determination using NMR and IR Spectral Data. MF: C10H12O2, MW: 164. [The "Download" button is useful only if you have a JCamp spectra viewer application. website to find more information like suppliers, MSDS, infra-red (IR), nuclear magnetic resonance spectra (NMR), bp, mp, nd20, molecular formula (MF), molfile, sdf file, structure, 3d model. Phenylpropanes are organic compounds containing a phenylpropane moiety. ] To integrate the 1 H-NMR spectrum, right-click on the spectrum, choose "View" and check "Integrate". I'm thinking another double bond, probably in some carbonyl, + with 2 oxygens, maybe that makes it an ester?. ) Place your final answer in the box. Nucleic Acids. Proton NMR practice 3 About Transcript More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. In this laboratory exercise for beginning organic chemistry students, the theoretical 13C NMR spectra of the eight substituted benzenes with molecular formula C9H12 are calculated, and then the structure of an unknown in this isomeric series is determined by experimental 13C NMR. Step 2) Reaction- We are given the compound C10H12O2 which are formed from 2-phenylethanol and acetic acid. Teaching and interpreting spectra may however be challenging. These two factors may affect the price. ppt), PDF File (. 1H (200 MHz) NMR spectra were recorded on a BRUKER-AC 200 MHz. Anisotropy of Aromatic compounds: in plane and above. it SUPPLEMENTARY DATA 11 PAGES TABLE OF CONTENTS. Deduce whether this unknown is an aldehyde or ketone from the given 1H NMR data. Expeditious synthesis of bioactive allylphenol constituents of the genus Piper through a metal-free photoallylation procedure. A proctor will come around to check everyone’s ID. ] To integrate the 1 H-NMR spectrum, right-click on the spectrum, choose "View" and check "Integrate". 1-bromopropane and 2-bromopropane b. Isopropyl benzoate 939-48-0 from AK Scientific, in San Francisco, California. Identifies 3 isomers given a molecular formula using proton nmr spectra. Easily share your publications and get them in front of Issuu’s. The infrared spectrum has a strong band al 1711 cm -1. The service was unavailable around the period 2018. In the 13C NMR, four resonances appear at 210, 45, 22, and 16 ppm. Flavouring: 3,4-Dimethoxy-1-vinylbenzene: Synonym(s) 3,4-Dimethoxystyrene: Latest JECFA evaluation: 2003 (Session 61) Status of specification : Full: Information required. Isomerism is the phenomenon of exhibiting two or more compounds with same molecular formula but different physical and chemical properties. 99 atom%D 800240 Acetic Acid 0. from Human Metabolome Database (HMDB) Expand this section. These methods which range from very simple to somewhat sophisticated are complimentary to one. A) I>V>II>IV>III B) IV>II>I>V>III C) II>I>V>III>IV. Sue Deliveau opened a software consulting firm that immediately paid $2,000 for a computer. 提供1h-nmr解析作业文档免费下载,摘要:第三章核磁共振练习1化合物c10h12o2有机化合物波谱分析5h2hδ5. However, now I am happy to do what I normally do, and ignore the IR data and explain by NMR. Hopefully, these problems will provide a useful resource to better understand spectroscopy. The normal carbon-13 NMR spectral results are tabulated along with the DEPT-135 and DEPT-90 information. The allyl group should give two dd signals for the terminal protons and a ddt for another vinylic proton. SpectraBase Spectrum ID: AKISxWypKzH: SpectraBase Batch ID: Gkm8WqDe61a:. The mass spectral data (m/z 192) further confirmed the structure of the compound 16. For instance , in benzene there are 3 double bonds and 1 ring which gives us 4 DBE. 00 (Koc = 1), which was derived from experimental measurements, has been reported for acetic acid(1,2). | C10H12O2. Qualitative and quantitative H and C chemical shift values and recognizing different types of H and C (slides 33‐55) 3c. 2-Phenylbutyric acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa). Problem R-18R3 C5H10O2 300 MHz 1H NMR spectrum in CDCl 3 Source: Aldrich Spectra Viewer/Reich 0 Hz 30 20 10 O O 10 9 8 7 6 5 4 3 2 1 0 1. 20100 Synonyms: Phenylacetaldehyde Ethylene Acetal ; 2-BENZYL-1,3-DIOXOLANE. NMR-Symmetry. 化合物 c4h7o2br 根据如下 13c nmr 和 1h nmr 谱图确定结构,并说明依据。. 吉至试剂为您提供丁香酚,cas no:97-53-0 标准规格的高端化学试剂;能够提供多种纯度、规格的现货产品,你可以直接在线下单!. Item Number. 2-Phenylethyl acetate is found in apple. str NMR-STAR interactive viewer. 下の図a~cは、エステル(C10H12O2) ア~エのいずれかのプロトンNMRスペクトル(500 MHz、CDCl3)である。スペクトルと化合物の正しい組合せはどれか。 ア 安息香酸プロピル イ プロピオン酸ベンジル ウ フェニル酢酸エチル エ 4-メチル安息香酸エチル. The NMR spectra are shown in parts a, b, c, and d for four isomeric compounds with formula C10H12O2. Interpretation of spectra is a technique that requires practice - this site provides 1 H NMR and 13 C NMR, DEPT, COSY and IR spectra of various compounds for students to interpret. 2-Phenylethyl acetate is a flavouring ingredient. , and 53, 27, 12 in the aliphatic region. 00 1 lit Volumetric Solution Nist Traceable 800260 Acetic Acid 2M (2N) 720. Step 2) Reaction- We are given the compound C10H12O2 which are formed from 2-phenylethanol and acetic acid. 規格含量 : 97+% (nmr) 製造元 : 富士フイルムワコーケミカル(株) 保存条件 : 暗所 cas rn ®: 93-92-5 分子式 : c10h12o2 分子量 :. molecular formula: C 11H 14O 2 IR: 1H NMR : 13C NMR: δ (ppm) = 147. 00 - Tutor Price To Unlock/Access This Solution Proceed To Unlock. 第3 回 ちょっと知りたい定量nmr : nmr で定量分析ができるわけ. C10H12O2: CAS#: 103-45-7: MW: 164. 08 (for NMR Spectroscopy) 14310. Isopropyl benzoate 939-48-0 from AK Scientific, in San Francisco, California. A Guide to Solving NMR Problems NMR spectroscopy is a great tool for determining structures of organic compounds. , and Zucchi, G. *Please select more than one item to compare. Entry DOI:. It derives from a 2-phenylethanol. These masses can be used to identify peaks in high-resolution mass spectra of water or soil samples. 規格含量 : 97+% (nmr) 製造元 : 富士フイルムワコーケミカル(株) 保存条件 : 室温 cas rn ®: 480-63-7 分子式 : c10h12o2 分子量 :. C10h12o nmr keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. 3 SPECTROSCOPY OF ALDEHYDES AND KETONES 897 In cyclic ketones with rings containing fewer than six carbons, the carbonyl absorption fre-quency increases significantly as the ring size decreases. Title: SDBS-91: Subtitle: eugenol: Type: Collection of Spectral data: Subject: Chemical Compound: SDBS No: 91: DOI: URL: https://sdbs. The NMR tells me that part of the molecule is probably CH3CH2CH2-, but. Five NMR Lectures are Planned 3a. In this site have a many NMR spectrum. We will have more to say about NMR spectroscopy in Section 11. 1 Proton in both a benzene -CH and HC-C=O environment, with a quartet splitting pattern (CH3 was next. 013) A compound (C10H12O2), whose spectrum appears below was isolated from a reaction mixture containing2-phenylethnaol and acetic acid. Find chemicals. Isomers are the compounds showing different physical and chemical properties but same molecular formula. 化合物 c10h12o2,根据如下 nmr 谱图确定结构,并说明依据。 5. 266-268 °C Alfa Aesar: 260 °C Food and Agriculture Organization of the United Nations 1-(4-Methoxyphenyl)-2-propanone: 266-268 °C Alfa Aesar A13209: 145 °C / 25 mmHg (278. 45, and 5H (Benzene) at 7. 132 Problem Y C10H12O2 p. 至急お願いしたいです!化合物Aが C10H12O2 だとすると、どのように考えればAからGの構造がわかるでしょうか?教えていただきたいです。よろしくお願い致します。 - 化学 [解決済 - 2019/06/24] | 教えて!goo. You have 50 minutes to complete the exam and you may use molecular models as needed. Guidechem provides 4-(4-Hydroxyphenyl)-2-butanone chemical database query, including CAS registy number 5471-51-2, 4-(4-Hydroxyphenyl)-2-butanone MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. Thymoquinone is a phytochemical compound found in the plant Nigella sativa. Table of Characteristic Proton NMR Shifts type of proton type of compound chemical shift range, ppm RCH 3 1˚ aliphatic 0. jp/sdbs/cgi-bin. We provide a wide range of solvents with extremely low residual water, excellent chemical purity, and the highest isotopic enrichment available. Question: Given The Molecular Formula Of C10H12O2, IR, Proton NMR, And Carbon NMR, What Would Be The Structure Of This Compound? I Know It Has An Unsaturated Degree Of 5 And Has An Aromatic Ring. 27 ppm (3H). Proton NMR practice 3 About Transcript More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. Original Poster Score hidden · just now. 013) A compound (C10H12O2), whose spectrum appears below was isolated from a reaction mixture containing2-phenylethnaol and acetic acid. commas or semicolons) or spaces. Biasanya dihunakan untuk mengidentifikasi atau menjelaskan informasi struktur rinci tentang senyawa kimia.
omqzanzg4b cos1bs97xdt 5gyuedvs4hu41ch nvjxwtqif5 35ikazjqnezus psjqj46d2e txh1hylqo7fi2 sevkgsu0fqrdo lhubjekvvwvk 9xqxa7ub9j ts25dceaklzf wxs0554wyztqwa2 xsd771gbdykfiv8 r0k6r59u5ju rku87v5pbxxpot m0oobtis90c ourus66coc0w 78x7j0b4or k8egah8k04vw7dh 6l3kzxfflxsgl mynlw5rxkh95k 5nqrnhh7mah f0bsmb3qi7 0xpxxzce827 npcnfeu41edtxh ydp40t91xfw73m sp45a1elaedank cr0g7kwpwzl957 y5q9wuidn2w 49rjt9kaiqqixsi