Product Details
| Product Name: p-Toluenesulfonic acid PTSA | CAS No.: 104-15-4 |
| EC-No.: 203-180-0 | Min. Order: 1kg |
| Purity: 99% | Supply Ability: 100ton |
| Release date: 2026/01/05 |
p-Toluene Sulfonic Acid,Paratoluene Sulphonic Acid,104-15-4
Synonyms: PTSA, 4-Toluene sulfonic acid, p-Methylbenzene sulfonic acid, 4-methyl-Benzenesulfonic acid, 4-methylbenzenesulfonic acid, 4-toluenesulfonic acid, acid p-toluenesulfonique, Tosic acid
CAS No.: 104-15-4
EINECS: 203-180-0
Molecular formula: C7H8O3S
Molecular weight: 172.20
Appearance: white crystalline powder
Purity: 99%
Packing: 25 Kg/bag
Application:PTSA is wildly used as stabilizer and catalyst in synthesis of pharmaceuticals, pesticides, polymerization. It can also be used as curing agent in pharmaceuticals, paints intermediates, resins.

| Item | Specifications | Results |
| Appearance | White crystals, slowly change to yellowish clear liquid if heated | White crystals, slowly change to yellowish clear liquid if heated |
| Purity | ≥99% | 99.34% |
| Melting point | ≥24℃ | 24.8℃ |
| Moisture | ≤0.3% | 0.28% |
| p-toluenesulfonic acid | ≤0.2% | 0.12% |
| PTSC | ≤0.3% | 0.23% |
| Ash | ≤0.05% | 0.02% |
| Conclusion | The results conforms with enterprise standards | |

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- Since: 2021-12-10
- Address: No. 6 Jianshe South Street, Qiaoxi District, Shijiazhuang City, Hebei Province, China, 1801 Ximei Bu
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