IUPAC: 2-{5-[1-(5-carboxypentyl)-3,3-dimethyl-5-sulfo-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl}-1-ethyl-3,3-dimethyl-3H-indol-1-ium-5-sulfonate

SMILES: CC[N+]1=C(C=CC=CC=C2N(CCCCCC(O)=O)c3ccc(cc3C2(C)C)S(O)(=O)=O)C(C)(C)c2cc(ccc12)S([O-])(=O)=O