SMILES: C/C(=C\\C=C\\C=C(\\C=C\\C=C(\\C=C\\C=C(\\C(=O)[O-])/C)/C)/C)/C=C/C=C(/C=C/C=C(/C(=O)[O-])\\C)\\C
Description: The molecule is a dicarboxylic acid dianion derived from 4,4'-diapolycopen-4,4'-dioic acid. Major structure at pH 7.3, It is a conjugate base of a 4,4'-diapolycopenedioic acid.