CAS Registry Number

CAS 6192-52-5 — p-Toluenesulfonic acid monohydrate

p-Toluenesulfonic acid monohydrate is a strong organic acid widely used as a catalyst in organic synthesis, a pH adjuster in pharmaceutical formulations, and a reagent in polymer manufacturing. It appears as a white crystalline solid with high solubility in water and polar solvents. This product has a CAS number of 6192-52-5, molecular formula CH3C6H4SO3H · H2O, and a molecular weight of 190.22 g/mol. It requires careful handling, marked with a **Danger** signal word for corrosive and hazardous properties, and is stored at ambient conditions. Molekula supplies p-Toluenesulfonic acid monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.