Chlorosulfonyl isocyanate
氯磺酰异氰酸酯
Also known as: CSI, N-Carbonylsulfamyl chloride, Sulfurisocyanatidic chloride, N-Chlorosulfonyl isocyanate, N-Chlorosulphonyl isocyanate, Isocyanatosulfuryl chloride, Sulfuryl chloride isocyanate, (Chlorosulfonyl)iminoformaldehyde
- CAS No.
- 1189-71-5
- Jingsj CID
- J-1993922-5
- Molecular Formula
- CClNO3S
- Chinese Name
- 氯磺酰异氰酸酯
- Molecular Weight
- 141.534 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | −44 °C(lit.) |
|---|---|
| Boiling Point | 107.0±9.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 18.5±18.7 °C |
GHS Safety & Compliance
Corrosion / Irritant / Health HazardSignal word: Danger
Frequently Asked Questions
What is the CAS number of Chlorosulfonyl isocyanate?
1189-71-5
What are the molecular formula and molecular weight of Chlorosulfonyl isocyanate?
CClNO3S, molecular weight 141.534 g/mol
Is Chlorosulfonyl isocyanate hazardous?
Danger
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026