Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
Basic Information
Product Name: Chlorosulfonyl isocyanate
Alias: CSI
CAS No: 1189-71-5
Molecular Formula: CClNO2S
Molecular Weight: 129.54
Classification: High activity organic synthesis reagent
Physical & Chemical Properties
Appearance: Colorless transparent fuming liquid
Boiling Point: 107-108℃
Density: 1.626 g/cm3
Solubility: Reacts violently with water, soluble in halogenated hydrocarbons
Stability: Strong corrosive, easy hydrolysis, sealed cold storage
Specification Table
| Item | Specification | Unit | Remarks |
| Product Name | Chlorosulfonyl isocyanate | - | Synthesis grade |
| CAS No | 1189-71-5 | - | Pharmaceutical pesticide intermediate |
| Appearance | Colorless fuming liquid | - | Strong irritant odor |
| Molecular Formula | CClNO2S | - | Digital format |
| Molecular Weight | 129.54 | g/mol | - |
| Purity | ≥99.0 | % | GC |
| Moisture | ≤0.1 | % | - |
Main Uses
- High-efficiency acylating agent for medicine synthesis
- Synthesis of sulfonamide, urea and heterocyclic compounds
- Pesticide, herbicide and bactericide intermediate
- Chemical modification and polymer synthesis reagent
Safety Reminder
Strong corrosive, corrosive to skin eyes, strictly avoid contact with water and moisture
...