IUPAC: sodium 2-[(1E,3E,5E)-7-[(2E)-3,3-dimethyl-5-[(2-sulfanylethyl)carbamoyl]-1-(4-sulfonatobutyl)-2,3-dihydro-1H-indol-2-ylidene]hepta-1,3,5-trien-1-yl]-3-methyl-5-[(2-sulfanylethyl)carbamoyl]-1-(4-sulfonatobutyl)-3H-indol-1-ium

SMILES: [Na+].CC1C(\C=C\C=C\C=C\C=C2\N(CCCCS([O-])(=O)=O)c3ccc(cc3C2(C)C)C(=O)NCCS)=[N+](CCCCS([O-])(=O)=O)c2ccc(cc12)C(=O)NCCS