Phenolphthalein disulfate, tripotassium salt

Phenolphthalein disulfate is used in a broth as a substrate for arylsulfatase. This broth is a medium used to differentiate pathogenic mycobacteria based on their arylsulfatase production ability, those that produce arylsulfatase release phenolphthalein and, with the addition of an alkali, will turn the solution pink. The desulfuration of phenolphthalein disulfate was also used to isolate and identify intestinal bacteria.

Product Specifications
Phenolphthalein disulfate,tripotassium salt;
Phenolphthalein disulfate tripotassium salt hydrate

Formula: C₂₀H₁₃K₃O₁₁S₂

MW: 610.74 g/mol

Storage/Handling: Store at room temperature, keep dry and protect from light.

PubChem Chemical ID: 112881