Bromocresol perple water soluble

sodium 2-[(3-bromo-4-hydroxy-5-methylphenyl)(3-bromo-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulphonate

Sodium 2-((3-bromo-4-hydroxy-5-methylphenyl)(3-bromo-5-methyl-4-oxocyc lohexa-2,5-dien-1-ylidene)methyl)benzenesulphonate

2-[3-Methyl-4-hydroxy-5-bromo-α-(3-methyl-4-oxo-5-bromo-2,5-cyclohexadiene-1-ylidene)benzyl]benzenesulfonic acid sodium salt

2-[(3-Bromo-4-oxo-5-methyl-2,5-cyclohexadienylidene)(3-bromo-4-hydroxy-5-methylphenyl)methyl]benzenesulfonic acid sodium salt

2-[(3-Bromo-4-hydroxy-5-methylphenyl)(3-bromo-5-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]benzenesulfonic acid sodium salt