Record Information |
---|
Version | 2.0 |
---|
Created at | 2005-11-16 15:48:42 UTC |
---|
Updated at | 2024-09-03 04:17:10 UTC |
---|
NP-MRD ID | NP0001132 |
---|
Natural Product DOI | https://doi.org/10.57994/0944 |
---|
Secondary Accession Numbers | None |
---|
Natural Product Identification |
---|
Common Name | Stearic acid |
---|
Description | Stearic acid, also known as octadecanoic acid or C18:0, Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Stearic acid (its ester is called stearate) is a saturated fatty acid that has 18 carbons and is therefore a very hydrophobic molecule that is practically insoluble in water. It exists as a waxy solid. In terms of its biosynthesis, stearic acid is produced from carbohydrates via the fatty acid synthesis machinery wherein acetyl-CoA contributes two-carbon building blocks, up to the 16-carbon palmitate, via the enzyme complex fatty acid synthase (FA synthase), at which point a fatty acid elongase is needed to further lengthen it. After synthesis, there are a variety of reactions it may undergo, including desaturation to oleate via stearoyl-CoA desaturase (PMID: 16477801 ). Stearic acid is found in all living organisms ranging from bacteria to plants to animals. It is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. For example, it is a component of cocoa butter and shea butter. It is used as a food additive, in cleaning and personal care products, and in lubricants. Its name comes from the Greek word stear, which means ‘tallow’ or ‘hard fat’. |
---|
Structure | InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20) |
---|
Synonyms | Value | Source |
---|
18:0 | ChEBI | Acide octadecanoique | ChEBI | Acide stearique | ChEBI | C18:0 | ChEBI | CH3-[CH2]16-COOH | ChEBI | N-Octadecanoic acid | ChEBI | Octadecansaeure | ChEBI | Octadecoic acid | ChEBI | Oktadekansaeure | ChEBI | Stearinsaeure | ChEBI | Stearate | Kegg | N-Octadecanoate | Generator | Octadecoate | Generator | Octadecanoic acid | HMDB | Octadecanoate | HMDB | 1-Heptadecanecarboxylate | HMDB | 1-Heptadecanecarboxylic acid | HMDB | Stearex beads | HMDB | Stearic acid cherry | HMDB | Stearophanate | HMDB | Stearophanic acid | HMDB | Calcium stearate | HMDB | Aluminum tristearate | HMDB | Ammonium stearate | HMDB | Zinc stearate | HMDB | Magnesium stearate | HMDB | Sodium stearate | HMDB | Aluminum monostearate | HMDB | FA(18:0) | HMDB |
|
---|
Chemical Formula | C18H36O2 |
---|
Average Mass | 284.4772 Da |
---|
Monoisotopic Mass | 284.27153 Da |
---|
IUPAC Name | octadecanoic acid |
---|
Traditional Name | stearic acid |
---|
CAS Registry Number | 57-11-4 |
---|
SMILES | CCCCCCCCCCCCCCCCCC(O)=O |
---|
InChI Identifier | InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20) |
---|
InChI Key | QIQXTHQIDYTFRH-UHFFFAOYSA-N |
---|
Experimental Spectra |
---|
|
| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
---|
1D_DEPT NMR | 13C NMR Spectrum (1D, 201 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-09 | View Spectrum | HSQC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2023-09-21 | View Spectrum | HMBC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2023-09-21 | View Spectrum | COSY NMR | [1H, 1H] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2023-09-21 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2023-09-21 | View Spectrum | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2023-09-21 | View Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CDCl3, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
---|
|
| Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
---|
| Chemical Shift Submissions |
---|
|
| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
---|
1D NMR | 1H NMR Spectrum (1D, 600, CD3OD, simulated) | bgnzk@missouri.edu | Sumner Lab, MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-09 | View Spectrum | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, CDCl3, simulated) | v.dorna83@yahoo.com | Not Available | Not Available | 2021-07-25 | View Spectrum |
| Species |
---|
Species of Origin | |
---|
Species Where Detected | |
---|
Chemical Taxonomy |
---|
Description | Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. |
---|
Kingdom | Organic compounds |
---|
Super Class | Lipids and lipid-like molecules |
---|
Class | Fatty Acyls |
---|
Sub Class | Fatty acids and conjugates |
---|
Direct Parent | Long-chain fatty acids |
---|
Alternative Parents | |
---|
Substituents | - Long-chain fatty acid
- Straight chain fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
|
---|
Molecular Framework | Aliphatic acyclic compounds |
---|
External Descriptors | |
---|
Physical Properties |
---|
State | Solid |
---|
Experimental Properties | Property | Value | Reference |
---|
Melting Point | 68.8 °C | Not Available | Boiling Point | 183.00 to 184.00 °C. @ 1.00 mm Hg | The Good Scents Company Information System | Water Solubility | 0.0006 mg/mL | Not Available | LogP | 8.23 | Sangster, J. (1993). LOGKOW- a Databank of Evaluated Octanol-Water Partition Coefficients. Sangster Research Laboratories, Montreal. |
|
---|
Predicted Properties | |
---|
General References | - Crocker I, Lawson N, Daniels I, Baker P, Fletcher J: Significance of fatty acids in pregnancy-induced immunosuppression. Clin Diagn Lab Immunol. 1999 Jul;6(4):587-93. [PubMed:10391868 ]
- Katsuta Y, Iida T, Inomata S, Denda M: Unsaturated fatty acids induce calcium influx into keratinocytes and cause abnormal differentiation of epidermis. J Invest Dermatol. 2005 May;124(5):1008-13. [PubMed:15854043 ]
- Sanjurjo P, Rodriguez-Alarcon J, Rodriguez-Soriano J: Plasma fatty acid composition during the first week of life following feeding with human milk or formula. Acta Paediatr Scand. 1988 Mar;77(2):202-6. [PubMed:3354331 ]
- Neoptolemos JP, Thomas BS: Erythrocyte membrane stearic acid: oleic acid ratios in colorectal cancer using tube capillary column gas liquid chromatography. Ann Clin Biochem. 1990 Jan;27 ( Pt 1):38-43. [PubMed:2310156 ]
- Turpeinen AM, Wubert J, Aro A, Lorenz R, Mutanen M: Similar effects of diets rich in stearic acid or trans-fatty acids on platelet function and endothelial prostacyclin production in humans. Arterioscler Thromb Vasc Biol. 1998 Feb;18(2):316-22. [PubMed:9484999 ]
- Daubresse JC: [Atherosclerosis and nutrition]. Rev Med Brux. 2000 Sep;21(4):A359-62. [PubMed:11068494 ]
- Hoppu U, Rinne M, Lampi AM, Isolauri E: Breast milk fatty acid composition is associated with development of atopic dermatitis in the infant. J Pediatr Gastroenterol Nutr. 2005 Sep;41(3):335-8. [PubMed:16131990 ]
- Musial W, Kubis A: Preliminary assessment of alginic acid as a factor buffering triethanolamine interacting with artificial skin sebum. Eur J Pharm Biopharm. 2003 Mar;55(2):237-40. [PubMed:12637103 ]
- Doran TA, Ford JA, Allen LC, Wong PY, Benzie RJ: Amniotic fluid lecithin/sphingomyelin ratio, palmitic acid, palmitic acid/stearic acid ratio, total cortisol, creatinine, and percentage of lipid-positive cells in assessment of fetal maturity and fetal pulmonary maturity: a comparison. Am J Obstet Gynecol. 1979 Feb 1;133(3):302-7. [PubMed:433991 ]
- Kazmierczak SC, Gurachevsky A, Matthes G, Muravsky V: Electron spin resonance spectroscopy of serum albumin: a novel new test for cancer diagnosis and monitoring. Clin Chem. 2006 Nov;52(11):2129-34. Epub 2006 Sep 21. [PubMed:16990414 ]
- Kelly FD, Sinclair AJ, Mann NJ, Turner AH, Abedin L, Li D: A stearic acid-rich diet improves thrombogenic and atherogenic risk factor profiles in healthy males. Eur J Clin Nutr. 2001 Feb;55(2):88-96. [PubMed:11305631 ]
- Diani F, Cacco M, Molinaroli A, Cerruti G, Meloncelli C, Turinetto A: [Fatty acid composition of the cervical mucus obtained during ovulation and at the term of pregnancy]. Minerva Ginecol. 1998 Oct;50(10):405-10. [PubMed:9866950 ]
- Sampath H, Ntambi JM: The fate and intermediary metabolism of stearic acid. Lipids. 2005 Dec;40(12):1187-91. doi: 10.1007/s11745-005-1484-z. [PubMed:16477801 ]
|
---|