The molecule is the anionic form of a fluorescent dye derived from a polyhalogenated fluorescin. It has a role as a fluorochrome. It is a xanthene dye and a monocarboxylic acid anion. It derives from a fluorescin. It is a conjugate base of a rose bengal free acid.
2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl)benzoate