The molecule is a xanthene dye that is fluorescein bearing bromine substituents at positions 2', 4', 5' and 7'. It is a xanthene dye, an organobromine compound and a monocarboxylic acid. It is a conjugate acid of a 2',4',5',7'-tetrabromofluorescein(2-).
2-(2,4,5,7-tetrabromo-3-hydroxy-6-oxoxanthen-9-yl)benzoic acid