IUPAC:potassium 1-(5-{[2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethyl]carbamoyl}pentyl)-3,3-dimethyl-2-[(1E)-2-[(3E)-3-{2-[(2Z)-1,3,3-trimethyl-5-sulfonato-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-3H-indol-1-ium-5-sulfonate
IUPAC:potassium 1-(5-{[2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethyl]carbamoyl}pentyl)-3,3-dimethyl-2-[(1E)-2-[(3E)-3-{2-[(2Z)-1,3,3-trimethyl-5-sulfonato-2,3-dihydro-1H-indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-3H-indol-1-ium-5-sulfonate