Oleic acid
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| Names | |
|---|---|
| Preferred IUPAC name
(Z)-octadec-9-enoic acid | |
| Other names
Oleic acid (9Z)-Octadecenoic acid (Z)-Octadec-9-enoic acid cis-9-Octadecenoic acid cis-Δ9-Octadecenoic acid 18:1 cis-9 (Lipid numbers) | |
| Identifiers | |
3D model (JSmol) |
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| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.003.643 |
PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| C18H34O2 | |
| Molar mass | 282.47 g·mol−1 |
| Appearance | colorless oily liquid with lard-like odor |
| Density | 0.895 g/mL |
| Melting point | 13 to 14 °C (55 to 57 °F; 286 to 287 K) |
| Boiling point | 360 °C (680 °F; 633 K)[1] |
| Insoluble | |
| Solubility in ethanol | Soluble |
| −208.5·10−6 cm3/mol | |
| Hazards | |
| GHS labelling:[2] | |
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| Warning | |
| H315, H319 | |
| P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, P362+P364 | |
| NFPA 704 (fire diamond) | |
| Flash point | 189 °C (372 °F; 462 K)[2] (closed cup) |
| 363 °C (685 °F; 636 K)[2] | |
| Related compounds | |
Related compounds |
Elaidic acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is  ?) | |
| Infobox references | |
Oleic acid is one of the most common fatty acids.[3] It is an ω−9 fatty acid, a type of unsaturated fat. It has the chemical formula C17H34O2, sometimes written as C17H33COOH or C8H17−CH=CH−C7H14COOH. It is a cis fat; the matching trans fat is elaidic acid.
Compounds made from oleic acid are called oleates. Because it is a fatty acid, its salts are called soaps. Oleate esters, specifically triglycerides, are common in animal fats and vegetable oils, especially olive oil.
Sources
[change | change source]- ↑ Young, Jay A. (2002). "Chemical Laboratory Information Profile: Oleic Acid". Journal of Chemical Education. 79 (1): 24. Bibcode:2002JChEd..79...24Y. doi:10.1021/ed079p24.
- 1 2 3 4 "Oleic Acid". pubchem.ncbi.nlm.nih.gov. Retrieved 3 April 2026.
- ↑ "Molecule of the Week: Oleic Acid". American Chemical Society. 2026-03-30. Retrieved 2026-04-10.
