IUPAC:1-ethyl-2-{5-[1-(5-{[2-(4-hydroxyphenyl)ethyl]carbamoyl}pentyl)-3,3-dimethyl-5-sulfo-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl}-3,3-dimethyl-3H-indol-1-ium-5-sulfonate
IUPAC:1-ethyl-2-{5-[1-(5-{[2-(4-hydroxyphenyl)ethyl]carbamoyl}pentyl)-3,3-dimethyl-5-sulfo-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl}-3,3-dimethyl-3H-indol-1-ium-5-sulfonate