The molecule is a pyridinium ion, an arenesulfonate oxoanion, a pyrrolidinone and a member of 1,3-oxazoles. It has a role as a fluorochrome.
5-[2-[1-[[3-(2,5-dioxopyrrolidin-1-yl)oxycarbonylphenyl]methyl]pyridin-1-ium-4-yl]-1,3-oxazol-5-yl]-2-methoxybenzenesulfonate