p-Toluenesulfonic acid (CAS 104-15-4)

Chinese name: 对甲苯磺酸

p-Toluenesulfonic acid is registered under CAS 104-15-4. Molecular formula: C7H8O3S. Approximate molecular weight: 172.202. SKYSEVEN Chemical provides industrial chemical sourcing support and free CAS tools for global B2B buyers.

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Physical & identity data

CAS Number 104-15-4
English name p-Toluenesulfonic acid
Chinese name 对甲苯磺酸
Molecular formula C7H8O3S
Molecular weight 172.202
Boiling point 116℃
Density 1.07
Flash point 41℃
Refractive index 1.3825-1.3845
Water solubility 可溶
HS code (ref.) 2904909090

Applications (reference)

医药上用作合成强力霉素、潘生丁、萘普生、阿莫西林、头孢羟氨苄中间体的重要原料，在有机合成工业中被广泛使用；在丙稀酸酯、纺织助剂、摄影胶片等生产中用作催化剂；在树脂、涂料、人造板、铸造、油漆行业被广泛用作固化剂，使用本厂产品，固化速度快，漆膜不变色。　　本产品也是合成乙氧基喹啉的重要原料。在农药合成行业中也被广泛使用。贮运与防护：应贮存于通风干燥处，防止日晒、雨淋，露置于空气中易吸湿潮解。若吸湿后影响使用，可用离心机重新脱水或烘干。使用操作时避免与人体及衣物接触，若溅及人体或衣物应及时用水清洗。技术指标：

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FAQ

What is CAS 104-15-4?

p-Toluenesulfonic acid is identified by CAS Registry Number 104-15-4. Molecular formula: C7H8O3S. SKYSEVEN Chemical provides industrial chemical supply and free CAS lookup tools.

Where can I buy p-Toluenesulfonic acid?

Request a quote on cnchemshop.com. SKYSEVEN Chemical supplies industrial grades with COA/SDS on request for export orders.

How do I verify CAS 104-15-4 data?

Cross-check PubChem / NIST / CAS Common Chemistry, and use our free CAS lookup tool. Always match CAS on COA and invoice.

Data is for informational reference only. Verify lot-specific values with COA/SDS. Not for medical advice.