Pentadecanoic acid

Pentadecanoic acid
IUPAC name
pentadecanoic acid
Other names
n-Pentadecanoic acid; Pentadecylic acid
3D model (Jmol) Interactive image
ChemSpider 13249
ECHA InfoCard 100.012.448
PubChem 13849
Molar mass 242.40 g·mol−1
Density 0.842 g/cm3
Melting point 51 to 53 °C (124 to 127 °F; 324 to 326 K)[1]
Boiling point 257 °C (495 °F; 530 K) (100 mmHg)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Pentadecanoic acid is a saturated fatty acid. Its molecular formula is CH3(CH2)13COOH. It is rare in nature, being found at the level of 1.2% in the milk fat from cows.[2] The butterfat in cows milk is its major dietary source[3] and it is used as a marker for butterfat consumption.[4] Pentadecanoic acid also occurs in hydrogenated mutton fat.[5]

Pentadecanoic acid may decrease mother-to-child transmission of HIV through breastfeeding.[6]


  1. 1 2 Pentadecanoic acid, Sigma-Aldrich
  2. Rolf Jost "Milk and Dairy Products" Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002. doi:10.1002/14356007.a16_589.pub3
  3. Smedman, AE; Gustafsson, IB; Berglund, LG; Vessby, BO (1999). "Pentadecanoic acid in serum as a marker for intake of milk fat: relations between intake of milk fat and metabolic risk factors". The American Journal of Clinical Nutrition. 69 (1): 22–9. PMID 9925119.
  4. Pentadecanoic acid,
  5. Hansen, RP; Shorland, FB; Cooke, NJ (1954). "The occurrence of n-pentadecanoic acid in hydrogenated mutton fat". Biochem J. 58 (4): 516–517. PMC 1269934Freely accessible. PMID 13229996.
  6. Villamor, E; Koulinska, IN; Furtado, J; Baylin, A; Aboud, S; Manji, K; Campos, H; Fawzi, WW (2007). "Long-chain n-6 polyunsaturated fatty acids in breast milk decrease the risk of HIV transmission through breastfeeding". The American Journal of Clinical Nutrition. 86 (3): 682–9. PMID 17823433.
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