p-Toluenesulfonyl isocyanate
对甲基苯磺酰异氰酸酯
Also known as: Tosyl isocyanate, 4-Methylbenzenesulfonyl isocyanate, 4-Isocyanatosulphonyltoluene, 4-Methyl-N-(oxomethylene)benzenesulfonamide, Benzenesulfonamide, N-carbonyl-4-methyl-, Benzenesulfonyl isocyanate, 4-methyl-, MFCD00002030, p-Toluenesulphonyl isocyanate
- CAS No.
- 4083-64-1
- Jingsj CID
- J-8708-3
- Molecular Formula
- C8H7NO3S
- Chinese Name
- 对甲基苯磺酰异氰酸酯
- Molecular Weight
- 197.211 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 5°C |
|---|---|
| Boiling Point | 288.8±9.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 128.5±18.7 °C |
GHS Safety & Compliance
Acute Toxicity / Health HazardSignal word: Danger
Frequently Asked Questions
What is the CAS number of p-Toluenesulfonyl isocyanate?
4083-64-1
What are the molecular formula and molecular weight of p-Toluenesulfonyl isocyanate?
C8H7NO3S, molecular weight 197.211 g/mol
Is p-Toluenesulfonyl isocyanate hazardous?
Danger
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026