Chlorosulfonyl isocyanate
ALDRICH/142662 - 98%
Synonym: N-Carbonylsulfamyl chloride; CSI
CAS Number: 1189-71-5
Empirical Formula (Hill Notation): CClNO3S
Molecular Weight: 141.53
EC Number: 214-715-2
MDL Number: MFCD00011608
Linear Formula: ClSO2NCO
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 142662-1KG.
| assay | 98% |
| bp | 107 °C (lit.) |
| density | 1.626 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/CClNO3S/c2-7(5,6)3-1-4 |
| InChI key | WRJWRGBVPUUDLA-UHFFFAOYSA |
| mp | −44 °C (lit.) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | ClS(=O)(=O)N=C=O |
| storage temp. | 2-8°C |
| vapor pressure | 5.57 psi ( 20 °C) |
| Application: | • Chlorosulfonyl isocyanate was used in synthesis and biochemical characterization of new class of membrane-associated glycosyltransferase inhibitors. • It is synthetically versatile reagent and was used in the preparation of amides, lactams and triazocinones. • It was employed in regio- and diastereoselective introduction of a protected amino group in synthesis of chiral, polyhydroxylated piperidines. • It was used as reagent during the synthesis of novel sulfamides. |
| Application: | Employed in a regio- and diastereoselective introduction of a protected amino group in a synthesis of chiral, polyhydroxylated piperidines. Generation of ureas from amino groups in a synthesis of benzimidazolones. |
| General description: | Chlorosulfonyl isocyanate is classified as an isocyanate and is widely used as a reagent in sulfonylation and carbamoylation reactions.Chlorosulfonyl isocyanate reacts with hydrocarbon alkenes via stepwise dipolar pathway to give N-chlorosulfonyl-β-lactams. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 25, 100 g in glass bottle |
| Symbol |    GHS05,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H302 - H314 - H317 - H334 |
| Precautionary statements | P261 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 14-22-34-42 |
| Safety Statements | 23-26-30-36/37/39-45 |
| RIDADR | UN 3265 8 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | > 230.0 °F |
| Flash Point(C) | > 110 °C |
| Supplemental Hazard Statements | EUH014 |
| Purity | 98% |
| bp | 107 °C (lit.) |
| mp | −44 °C (lit.) |
| Density | 1.626 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |