Synonyms: 3,3,5,5-Tetrabromo-m-cresolsulfonephthalein sodium salt; Bromocresol Green water soluble; Bromcresol green, sodium salt; sodium alpha-(3,5-dibromo-2-methyl-4-oxo-2,5-cyclohexadienylidene)-alpha-(3,5-dibromo-4-hydroxyphenyl)toluenesulphonate; Bromcresol Green, water soluble; Bromocresol Green, sodium salt; Bromocresol Green; Sodium α-(3,5-dibromo-2-methyl-4-oxo-2,5-cyclohexadienylidene)-α-(3,5-dibromo-4-hydroxyphenyl)toluenesulphonate; Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-3-methyl-,monosodium salt;