The molecule is an iminium betaine that consists of 4-{2-[7-(diethylamino)-2-oxo-2H-chromen-3-yl]ethenyl}pyridine-3-sulfonate carryiing a 5-carboxypentyl substituent on the pyridine nitrogen. It has a role as a fluorochrome. It is an iminium betaine and an aminochromene.
1-(5-carboxypentyl)-4-[(E)-2-[7-(diethylamino)-2-oxochromen-3-yl]ethenyl]pyridin-1-ium-3-sulfonate