IUPAC:1-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-3,3-dimethyl-2-[3-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)prop-1-en-1-yl]-3H-indol-1-ium chloride
IUPAC:1-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-3,3-dimethyl-2-[3-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)prop-1-en-1-yl]-3H-indol-1-ium chloride