Bromophenol blue sodium salt

Synonyms:  Bromophenol blue sodium, Sodium α-(3,5-dibromo-4-oxo-2,5-cyclohexadienylidene)-α-(3,5-dibromo-4-hydroxyphenyl)toluenesulphonate, Sodium 2,6-dibromo-4-(3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)phenolate, Bromophenol blue water soluble, 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[2,6-dibromophenol] S,S-dioxide sodium salt