has role has role is conjugate acid of is protonated form of has functional parent has functional parent fluorescein (acid form) benzoic acids tetrachlorobenzene phenols organobromine compound xanthene dye fluorochrome 2',4',5',7'-tetrabromo-2,3,4,5-tetrachlorofluorescein acid red 92 (free acid form) chebi_ontology A xanthene dye that is fluorescein bearing bromine substituents at positions 2', 4', 5' and 7' (on the xanthene ring) and chlorine substituents at position 2, 3, 4, and 5 (on the phenyl ring). The disodium salt is the biological stain 'phloxine B'. phloxine B free acid CHEBI:87193 2',4',5',7'-tetrabromo-2,3,4,5-tetrachlorofluorescein(2-)