(10E,12E,14E)-9,16-Dioxooctadeca-10,12,14-trienoic acid

The title octadecatrienoic acid derivative, C18H26O4, was isolated from Silene maritima With. (Caryophyllaceae), the first time this natural compound has been found in the Caryophyllales order. This fatty acid has an 18-carbon backbone with three double bonds on trans (E) conformation and two carbonyl. In the crystal, molecules are linked via pairs of O—H...O hydrogen bonds, forming inversion dimers.