IUPAC: 1-(5-carboxypentyl)-2-[(1E,3E)-5-[(2E)-1-ethyl-3,3-dimethyl-5-sulfonato-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl]-3,3-dimethyl-5-sulfo-3H-indol-1-ium; triethylamine

SMILES: CCN(CC)CC.CCN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(O)=O)c3ccc(cc3C2(C)C)S(O)(=O)=O)C(C)(C)c2cc(ccc12)S([O-])(=O)=O |c:15|