Chemical Name: P-Toluenesulfonic acid monohydrate
CAS No.: 6192-52-5
Molecular Formula: C7H10O4S
Molecular weight: 190.22
Click Here to Download COA of P-Toluenesulfonic acid monohydrate



Chemical Name: P-Toluenesulfonic acid monohydrate
CAS No.: 6192-52-5
Molecular Formula: C7H10O4S
Molecular weight: 190.22
Click Here to Download COA of P-Toluenesulfonic acid monohydrate
Chemical Name: P-Toluenesulfonic acid monohydrate
CAS No.: 6192-52-5
Molecular Formula: C7H10O4S
Molecular weight: 190.22
Appearance: White crystalline
Aaasy: 95%,97%,98%
Capacity: 5000MT/year
Chemical Structure: 
P-Toluenesulfonic acid monohydrate Typical Properties
| Item | Standard | Results |
| Appearance | White crystalline | White crystalline |
| Assay(GC) | ≥98% | 98.4% |
| Free acid % | ≤0.5 | 0.42 |
| Water % (Does not contain crystal water) | ≤1.5 | 0.9 |
| Iron (ppm) | ≤10 | 6 |
| Water solubility test | Confirms | Confirms |
| Ethanol-dissolved test | Confirms | Confirms |
| Conclusion | Qualified | |
It serves as an important intermediate in organic synthesis, applicable across various fields including explosives, pharmaceuticals, synthetic resins, polyethers, cosmetics, tobacco, and food products.
It is utilized in esterification, dehydration, alkylation, dealkylation, Beckmann rearrangement, polymerization, and depolymerization reactions.
It functions as a catalyst and stabilizer; in the pharmaceutical sector, it is employed in the synthesis of Persantine and Naproxen, as well as in the production of Amoxicillin.
It is also used in epoxy resins, amino resins, coatings, and similar applications.
Organic Synthesis: Strong acidic catalysts used in esterification, etherification, condensation, hydrolysis, and alkylation reactions.
Resin / Coatings Industry: Curing catalysts and polycondensation catalysts for amino resins, phenolic resins, and alkyd resins.
Polymerization Industry: Promoters for the polymerization and curing of acrylics, unsaturated polyesters, and epoxy resins.
Pharmaceutical Intermediates: Acidic catalysts used in pharmaceutical synthesis for esterification, salt formation, and purification processes.
Electroplating & Electronics: Electroplating brighteners, acidity regulators for electrolytes, and additives for electronic cleaning agents.
Chemical Auxiliaries: Catalysts for the synthesis of plasticizers, fragrances, and dyes; also used as dehydrating agents and neutralization regulators.
Other Applications: Lubricant refining, leather tanning auxiliaries, and catalysts for adhesive curing.
Packing: 25KG/bag
Delivery: By sea or by air or by courier