4-Toluene Sulfonic Acid Monohydrate is a strong organic acid widely used as a catalyst, intermediate, and acid reagent in pharmaceutical, resin, and dye manufacturing.
D.K. Pharmachem supplies high-purity, stable PTSA Monohydrate with export-compliant packaging for industrial and pharma sectors.
| Attribute | Details |
|---|---|
| CAS Number | 104-15-4 |
| Molecular Formula | C₇H₈O₃S·H₂O |
| Molecular Weight | 172.20 g/mol |
| Grade | Pharma / Industrial |
| Appearance | White crystalline powder |
| Assay | ≥98% |
| Packaging | HDPE drums |

Used in esterification, polymerization, and condensation reactions

Precursor in sulfonamide APIs

Improves curing and stability

Applied in colorant synthesis

Antimicrobial Agent








