Synonyms: | Chlorophenol blue(6CI); Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dichloro-,S,S-dioxide; o-Toluenesulfonic acid, a,a-bis(3,5-dichloro-4-hydroxyphenyl)-a-hydroxy-, g-sultone (8CI); 3H-2,1-Benzoxathiole, phenol deriv.;Tetrachlorophenol blue |