SMILES: CCCCCC/C=C/C=C\\CCCCCCCC(=O)[O-]
Description: The molecule is an octadeca-9,11-dienoate that is the conjugate base of 9-cis,11-trans-octadecadienoic acid, formed by deprotonation of the carboxylic acid functional group. It is a conjugate base of a 9-cis,11-trans-octadecadienoic acid.