A new acid from calea urticaefolia seed oil:trans-3, cis-9, cis-12-octadecatrienoic acid

Abstract

A major constituent fatty acid (31.2%) from Calea urticaefolia (Mill.) DC. seed oil is the previously unknown trans-3, cis-9, cis-12-octadecatrienoic acid. The oil also contains 2.2% of an unidentified acid and others with gas-liquid chromatographic characteristics that correspond to the conventional fatty acids: myristic, 0.1%; palmitic, 9.3%; stearic, 2.9%; oleic, 5.3%; and linoleic, 48.9%. © 1964 The American Oil Chemists' Society.