SMILES: CCC1=C(C(=NC1=O)/C=C\\2/C(=C(/C(=C/C3=C(C(=C(N3)/C=C\\4/C(=C\\C)/[C@H](C(=O)N4)C)C)CCC(=O)[O-])/N2)CCC(=O)[O-])C)C
Description: The molecule is dicarboxylate anion of (2R,3Z)-phycocyanobilin. It is a linear tetrapyrrole anion and a dicarboxylic acid dianion. It is a conjugate base of a (2R,3Z)-phycocyanobilin.