lipid octadeca-9,12-dienoic acid 280.446 A lipid that has formula C18H32O2. C18H32O2 CCCCCC=CCC=CCCCCCCCC(=O)O CHEBI:92157 InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h6-7,9-10H,2-5,8,11-17H2,1H3,(H,19,20) LINCS:LSM-2181 OYHQOLUKZRVURQ-UHFFFAOYSA-N chebi_ontology