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. Under the name toluene sulfonic acid, it also serves as an ingredient in cosmetic product formulations. 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.

Also known as: 4-methylbenzene-1-sulfonic acid hydrate · 4-methylbenzenesulfonic acid hydrate · 4-Methylbenzenesulfonic acid monohydrate · 4-methylbenzenesulphonic acid hydrate · 4-toluenesulfonic acid monohydrate · Benzenesulfonic acid, 4-methyl-, monohydrate · p-toluenesulfonic acid hydrate · p-Toluenesulphonic acid monohydrate · para-toluenesulfonic acid monohydrate · Toluene sulfonic acid · p-Toluenesulfonic acid monohydrate (P)