The molecule is an organic disodium salt having 2-{3-[2-tert-butyl-6,8,8-trimethyl-9-(3-sulfonatopropyl)-8,9-dihydropyrano[3,2-g]quinolin-1-ium-4-yl]prop-2-en-1-ylidene}-3-(3-carboxypropyl)-3-methyl-1-(3-sulfonatopropyl)indoline-5-sulfonate as the counterion. It has a role as a fluorochrome. It contains a DY-652(2-).
disodium;2-[(E,3E)-3-[2-tert-butyl-6,8,8-trimethyl-9-(3-sulfonatopropyl)pyrano[3,2-g]quinolin-4-ylidene]prop-1-enyl]-3-(3-carboxypropyl)-3-methyl-1-(3-sulfonatopropyl)indol-1-ium-5-sulfonate