IUPAC:2-{5-[1-(5-carboxypentyl)-3,3-dimethyl-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl}-1,3,3-trimethyl-3H-indol-1-ium bromide
IUPAC:2-{5-[1-(5-carboxypentyl)-3,3-dimethyl-2,3-dihydro-1H-indol-2-ylidene]penta-1,3-dien-1-yl}-1,3,3-trimethyl-3H-indol-1-ium bromide