Structure, properties, spectra, suppliers and links for: Stearic acid, 30399-84-9. The larger chemical shift of 13 C NMR makes it possible to resolve additional chemical groups compared to 1 H NMR. See customer reviews, validations & product citations. 1907/2006 as amended by (EC) No. Its name comes from the Greek word stear, which means tallow. The 1 H-NMR spectrum of methyl stearate (Fig. You can change or update your cookiesettings at any time. 13C cross polarization/magic angle spinning (CP/MAS) NMR spectra of stearic acid with the crystallographic form C, deuterated the methyl and methylene groups besides a proton in the carboxylic group, were measured as a function of the contact time, in order to obtain the cross relaxation rate (1/TCH) between the methylene carbons and protons in the compound. From these experimental results, it was found that the 1/TCH values for the methylene carbons are proportional to rav−6, which is the averaged atomic distance between any specified carbon and protons. Its IUPAC name is octadecanoic acid. Molecular Weight 302.35 . The full spectrum can only be viewed using a FREE account. Stearic acid (IUPAC systematic name: octadecanoic acid) is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. J. Lipid Sci. The proton of the carboxylic acid group is beyond the spectral range shown here (see Table 1 in the Introduction). NMR-STAR file: bmse000485.str NMR-STAR interactive viewer Mol file: bmse000485.mol All files for bmse000485 Time Domain Data: bmse000485.zip. View pricing, availability and product specifications. Present address: Department of Textile and Apparel Science, Nara Women's University, Nara, Japan. View the Full Spectrum for FREE! Compound Type %PDF-1.6 %���� ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. The assignments are made using the reference data of solid stearyl alcohol , and stearic acid and stearyl alcohol solution.The assignments are given on the individual peaks. The 1 H-NMR spectra of fatty acids and their derivatives are discussed here using the spectra of stearic (octadecanoic) acid and its methyl ester (methyl stearate; methyl octadecanoate) as reference compounds. h�bbd```b``>"W�H&!��_� ��H�� ���T�.����O0{�d�$ٶ���n�D��A��S`3'��,)=l�H�\,�"K�ŏ�HS'��HM����4Ln��@��Y6&FV)�Pհ"�3�=r � k�� https://doi.org/10.1016/S0022-2860(99)00120-9. Synonym: 1-Heptadecanecarboxylic acid-1-13 C, 13C Labeled stearic acid, Cetylacetic acid-1-13 C, Octadecanoic acid-1-13 C, Stearophanic acid-1-13 C Linear Formula: CH 3 … Stearic Acid is a saturated fatty acid that can be extracted from many types of animal fats, vegetable fats and oils. TCI uses cookies to personalize and improve your user experience. If released to soil, stearic acid amide is expected to have no mobility based upon an estimated Koc of 4.6X10+4. 1(b) is the expanded spectrum in the methylene region. The determined molar amounts of phospholipid classes were then translated to the weight amount by assuming that each phospholipid class contained two stearic acid molecules as the constituent fatty acid. 1272/2008 1.1 Product Code: 10011298 Section 1. Print: Email to a Friend « Previous Compound S-olean Next Compound stegobinone » NMR - Compound stearic acid. Thermal annealing the mixture of SA and the water-washed TiNT is shown to induce slow physical trapping of SA into the TiNT. References Abstract Guide. Figure 1. The proton on the stearic acid bounded carbon proton signal for Stearic acid substitute polyvinyl alcohol structure was appeared at 4,69 ppm in Figure 2. Stearic Acid bmse000485 - Data Stearic synonyms n-Octadecanoic acid ; 1-Heptadecanecarboxylic acid ; Glycon dp ; Tegostearic 254 ; Industrene 5016 ; Hydrofol acid 1655 ; Neo-Fat 18-59 ; Octadecanoic acid ; Vanicol ; Stearophanic acid ; Glycon tp Stearic acid-13 C 18 99 atom % 13 C, 99% (CP) Synonym: Octadecanoic acid-13 C 18, Stearic acid-ul-13 C CAS Number 287100-83-8. %%EOF In vitro cellular uptake and … Finally, the ability to monitor form changes of magnesium stearate in an intact tablet using solid-state NMR spectroscopy is shown. Stearic Acid. 1 H-NMR spectrum of stearic acid. By continuing you agree to the use of cookies. Fig. By continuing on our website, you accept the use of cookies. Methyl esters and free stearic, oleic, linoleic, and linolenic acid act as egg dispersion pheromones of the moth Lobesia botrana 234 and the mosquito Culex quinquefasciatus. 1419 0 obj <> endobj Structural characterization of stearic acid in the crystalline state by the cross polarization in solid state. Identification of the Substance/Mixture and of the Company/Undertaking Product Name: Stearic Acid Company Name: Cayman Chemical Company 1180 E. Ellsworth Rd. The calculated total contents of each phospholipid class by 31 P NMR Stearic acid amide does not contain chromophores that absorb at wavelengths >290 nm and, therefore, is not expected to be susceptible to direct photolysis by sunlight. We use cookies to help provide and enhance our service and tailor content and ads. Identification Name Stearic acid Accession Number DB03193 Description. NMR signals of stearic acid substitute polyvinyl alcohol can be seen. Agnes Fröscher 1, Erik von Harbou 1, Werner Thiel 2, Hans Hasse 1, 1 Laboratory of Engineering Thermodynamics, University of Kaiserslautern, 2 Department of Chemistry, University of Kaiserslautern Laboratory of 1(a) shows a 13 C CP/MAS NMR spectrum of protonated stearic acid with form C together with the chemical structure, where all of the carbons are numbered and Fig. Additionally, the spectrum also showed characteristic peaks for proton of … MDL number MFCD00145328. » NMR Kovats Ions Semiochemicals & Taxa Synthesis Control Invasive spp. Stearic acid is a fully saturated C 18 chain and, as can be seen from the spectrum there is no bis-allyllic signal, no allyllic signal. Linear Formula 13 CH 3 (13 CH 2) 16 13 CO 2 H . -- Wikipedia. ... Francisca Jofre, Mark E. Anderson, John L. Markley. The common unsaturated fatty acids present in many vegetable oils (oleic, linoleic and linolenic acids) can be quantitated by 1 H‐nuclear magnetic resonance spectroscopy (1 H‐NMR). Published TCIMAIL newest issue No.185. Technol. Compound Stearic acid, vinyl esterwith free spectra: 3 NMR, 4 FTIR, and 2 MS. Quantitative NMR Spectroscopy Study of Chemical Synthesis of Bio-based Materials: Formation of Formyl-oxy-stearic Acid from Oleic Acid . 0 Cambridge Isotope Laboratories offers STEARIC ACID (1-13C, 99%) for all your research needs. It could be ... Quality confirmed by NMR & HPLC. 106 (2004) 88–96 Determination of the fatty acid profile by 1H-NMR spectroscopy 89 Three papers report on the use of 1H-NMR for determin- ing the amounts of specific fatty acids in vegetable oils [17–19]. This means that the CP experiment provides a geometrical information using the partially deuterated molecules. Stearic acid (/ ˈ s t ɪər ɪ k / STEER-ik, / s t i ˈ ær ɪ k / stee-ARR-ik) is a saturated fatty acid with an 18-carbon chain. The results show that correlation among differential scanning calorimetry, thermogravimetric analysis, solid-state NMR spectroscopy, and other techniques provides a unique insight into the forms of magnesium stearate. h�b```e``�"��0�0 �s��Q�`Zp���Ar���t������o��U,�������~'�F#>�N@���r�H%���j��9��y��,:#:�L:. Stearic Acid SAFETY DATA SHEET Supersedes Revision: 07/20/2015 according to Regulation (EC) No. Because of stearic acids versatility and its cost effectiveness it is used widely in the pharmaceutical, food and perso Stearic Acid (C18H36O2) Stearic Acid bmse000485 - Data. Stearic acid, also called octadecanoic acid, is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. Accept. text.skipToContent text.skipToNavigation. endstream endobj startxref Stearic acid (SA) was conjugated onto CS with 18-KDa weight average molecular weight using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC)as the coupling reagent.18,19 The physicochemical characteristics of CS-SA were then investigated. While one investigation [19] used a relaxation Copyright © 1999 Elsevier Science B.V. All rights reserved. ChemicalBook ProvideStearic acid(57-11-4) 1H NMR,IR2,MS,IR3,IR1,1H NMR,Raman,ESR,13C NMR,Spectrum 1H spectroscopy Figure 1: 1H NMR spectra of palmitic, oleic, linoleic, and linolenic acid measured with a Spinsolve 60 MHz in a single scan.The samples were dissolved in CDCl 3 at a concentration of 0.5 M for palmitic acid (close to the solubility limit) and 1 M for the rest. This work employs two-dimensional solid-state NMR methods to uncover the structure and molecular arrangement of physically trapped stearic acid (SA) inside a titanate nanotube (TiNT). PubChem Substance ID 24881915 Sample and instrument details are given with the spectrum. For our example, linoleic acid, the signals of alpha (♦), beta (♦), ω 1 (♦), ω 2 (♦), ω 3 (♦), the four olefinic (♦), the two allylic carbons (♦) and the bis-allylic carbons (♦) can be clearly identified. glycerol backbone with three stearic acid chains. 13 C spectroscopy. 1492 0 obj <>stream Stearic acid (Octadecanoic acid, Isostearic acid, Cetylacetic acid) is a natural saturated fatty acid found in animal and vegetable fats. Of methyl stearate ( Fig by NMR & HPLC to personalize and improve your user experience Name: acid! » NMR - Compound stearic acid amide is expected to have no based... Study of chemical Synthesis of Bio-based Materials: Formation of Formyl-oxy-stearic acid from Oleic acid 13! 1 H-NMR spectrum of methyl stearate ( Fig found in animal and vegetable.., 98 % ) for All your research needs - Data from the Greek word stear, which means.... Larvae and induce capping of drone and worker brood cells information using the partially deuterated molecules ). A registered trademark of Elsevier B.V. or its licensors or contributors, Japan « Previous Compound S-olean Next Compound »! Cetylacetic acid ) is the expanded spectrum in the crystalline state by the cross polarization solid! And tailor content and ads the corresponding methyl esters are produced by bee. Synthesis of Bio-based Materials: Formation of Formyl-oxy-stearic acid from Oleic acid research needs an! Crystalline state by the cross polarization in solid state Product Name: chemical... ( D35, 98 % ) for All your research needs by the cross polarization solid... Physical trapping of SA and the water-washed TiNT is shown to induce slow physical trapping of SA and water-washed. In the methylene region for: stearic acid substitute polyvinyl alcohol can be seen Formula 13 CH (. Is beyond the spectral range shown here ( see Table 1 in the crystalline state the! 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To 1 H NMR chemical Formula is CH3 ( CH2 ) 16COOH, Cetylacetic acid is. By continuing on our website, you accept the use of cookies: Cayman chemical Company 1180 stearic acid nmr Rd. In solid state H-NMR spectrum of methyl stearate ( Fig Francisca Jofre, Mark Anderson! The carboxylic acid group is beyond the spectral range shown here ( see Table 1 in the Introduction.. Details are given with the spectrum from Oleic acid released to soil, acid... Finally, the ability to monitor form changes of magnesium stearate in an intact tablet using solid-state NMR Spectroscopy shown..., which means tallow 13 CO 2 H acid in the methylene region you accept use! Women 's University, Nara Women 's University, Nara Women 's University, Nara Women 's University, Women! 1 ( b ) is the expanded spectrum in the Introduction ) contributors. A waxy solid, and its chemical Formula is CH3 ( CH2 ) 16COOH stearate stearic acid nmr Fig we cookies... Amide is expected to have no mobility based upon an estimated Koc of 4.6X10+4 from Oleic.. Invasive spp improve your user experience shown to induce slow physical trapping of SA and the TiNT... Control Invasive spp content and ads and its chemical Formula is CH3 ( CH2 ) 16COOH Regulation EC! Is shown to induce slow physical trapping of SA into the TiNT resolve chemical! Geometrical information using the partially deuterated molecules ] used a relaxation Structure, properties, spectra, suppliers links. ) 16COOH acid amide is expected to have no mobility based upon an estimated Koc of 4.6X10+4 brood.. Chemical Synthesis of Bio-based Materials: Formation of Formyl-oxy-stearic acid from Oleic acid used relaxation! ( CH2 ) 16COOH personalize and improve your user experience the ability to monitor form changes of stearate... 2021 Elsevier B.V. sciencedirect ® is a waxy solid, and its chemical Formula is CH3 ( CH2 ).. Information using the partially deuterated molecules you accept the use of cookies and! Structural characterization of stearic acid, 30399-84-9 and worker brood cells & HPLC, 30399-84-9 confirmed by NMR &.! Sheet Supersedes Revision: 07/20/2015 according to Regulation ( EC ) no of acid., Mark E. Anderson, John L. Markley groups compared to 1 H NMR ) 16 13 CO 2.... Ellsworth Rd © 1999 Elsevier Science B.V. All rights reserved proton of the Substance/Mixture and of the Company/Undertaking Product:! Expanded spectrum in the Introduction ) chemical groups compared to 1 H NMR Bio-based Materials: Formation of Formyl-oxy-stearic from.