SMILES: CC/C=C/C=C/C=C\\C=C/CCCCC(=O)CCC(=O)O
Description: The molecule is a polyunsaturated fatty acid that is (9Z,11Z,13E,15E)-octadecatetraenoic acid carrying an oxo substituent at position 4. It has a role as a marine metabolite. It is an oxo fatty acid, a polyunsaturated fatty acid and a long-chain fatty acid.