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| Names | |
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Preferred IUPAC name
Pentadecanoic acid | |
| Other names
n-Pentadecanoic acid;
C15:0 (Lipid numbers) | |
| Identifiers | |
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3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.012.448 |
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PubChem CID
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| UNII | |
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CompTox Dashboard (EPA)
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| Properties | |
| C15H30O2 | |
| Molar mass | 242.403 g·mol−1 |
| Density | 0.842 g/cm3 |
| Melting point | 51 to 53 °C (124 to 127 °F; 324 to 326 K) |
| Boiling point | 257 °C (495 °F; 530 K) (100 mmHg) |
| Related compounds | |
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Related compounds
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Tetradecanoic acid, Hexadecanoic acid |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Pentadecylic acid, also known as pentadecanoic acid or C15:0 is an odd-chain saturated fatty acid. Its molecular formula is CH3(CH2)13CO2H. It is a colorless solid.
A laboratory preparation involves permanganate oxidation of 1-hexadecene (CH3(CH2)13CH=CH2).
Pentadecylic acid is found primarily in dairy fat, as well as in ruminant meat and some types of fish and plants. It is one of the most common odd-chain fatty acids, although it is rare in nature, comprising 1.2% of milk fat from cows.
Because the butterfat in cow milk is its major dietary source, it may be used as a biomarker for butterfat consumption. Pentadecylic acid also occurs in hydrogenated mutton fat.
In reviews of preliminary dietary research, higher circulating concentrations of pentadecyclic acid were associated with a lower risk of developing type 2 diabetes and cardiovascular disease.