The molecule is a fluorescein compound having chlorine substituents in the 2'-, 4-, 7- and 7'-positions and a succinimidyloxycarbonyl substituent at the 6-position. It has a role as a fluorochrome. It derives from a fluorescein.
(2,5-dioxopyrrolidin-1-yl) 2',4,7,7'-tetrachloro-3',6'-dihydroxy-1-oxospiro[2-benzofuran-3,9'-xanthene]-5-carboxylate