Columbinic acid is a polyunsaturated fatty acid (PUFA) with 18 carbon atoms and three trans (E) double bounds (shorthand nomenclature cannot be used to name trans fatty acids), member of the sub-group called long chain fatty acids (LCFA), from 14 to 18 carbon atoms.
Molecular weight: 278.4296 g/mol
Molecular formula: C18H30O2
IUPAC name: (5E,9E,12E)-octadeca-5,9,12-trienoic acid
5,9,12-octadecatrienoic acid, (cis)-isomer
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