Heptadecanoic acid

Heptadecanoic acid[1]
IUPAC name
Heptadecanoic acid
Other names
Margaric acid
n-Margaric acid
n-Heptadecanoic acid
Heptadecylic acid
n-Heptadecylic acid
17:0 (Lipid numbers)
506-12-7 YesY
3D model (Jmol) Interactive image
ChEBI CHEBI:32365 YesY
ChEMBL ChEMBL1172910 YesY
ChemSpider 10033 YesY
ECHA InfoCard 100.007.298
Molar mass 270.45 g/mol
Appearance White crystals
Density 0.853 g/cm3
Melting point 61.3 °C (142.3 °F; 334.4 K)
Boiling point 227 °C (441 °F; 500 K) 100 mmHg
Related compounds
Related fatty acids
Palmitic acid
Stearic acid
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Heptadecanoic acid, or margaric acid, is a saturated fatty acid. Its molecular formula is CH3(CH2)15COOH. It occurs as a trace component of the fat and milkfat of ruminants,[2] but it does not occur in any natural animal or vegetable fat at high concentrations.[3] Salts and esters of heptadecanoic acid are called heptadecanoates.


  1. Merck Index, 13th Edition, 5775
  2. R. P. Hansen, F. B. Shorland and N. June Cooke (1957). "Occurrence in Butterfat of n-Heptadecanoic Acid (Margaric Acid)". Nature. 179 (98): 98. doi:10.1038/179098a0.
  3. Beare-Rogers, J.; Dieffenbacher, A.; Holm, J.V. (2001). "Lexicon of lipid nutrition (IUPAC Technical Report)". Pure and Applied Chemistry. 73 (4): 685–744. doi:10.1351/pac200173040685.

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