Synonyms: Aceticacid, [(a-hydroxy-o-sulfobenzylidene)bis[(6-hydroxy-5-methyl-m-phenylene)methylenenitrilo]]tetra-,g-sultone (7CI);Acetic acid,[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-m-phenylene)methylenenitrilo]]tetra-,S,S-dioxide (8CI);Glycine, N,N'-[3H-2,1-benzoxathiol-3-ylidenebis[(6-hydroxy-5-methyl-3,1-phenylene)methylene]]bis[N-(carboxymethyl)-,S,S-dioxide;Phenolsulfonephthalein,3',3''-bis[[bis(carboxymethyl)amino]methyl]-5',5''-dimethyl- (6CI);Cresol Phthalexon S;NSC 324982;XylenolOrange;o-Cresolphthalexon S;Xylenol orange;