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Chlorosulfonyl isocyanate

Chemical Name:
Chlorosulfonyl isocyanate
CSI;sulfurisocyanatidic chloride;chlorosulphonyl isocyanate;[(Chlorosulfonyl)imino]methanone;N-chlorosulfonyl isocyanate;chloroSulfonyl;N-CARBONYLSULFAMYL CHLORIDE;N-Carbonylsulfamyl chloride, CSI;Chlorosulfonyl isocy;Cefuroxime Impurity 40
Molecular Formula:
Molecular Weight:
MDL Number:
MOL File:
MSDS File:
Modify Date:2022-08-15 17:39:56

Chlorosulfonyl isocyanate Properties

Melting point -44 °C (lit.)
Boiling point 107 °C (lit.)
Density 1.626 g/mL at 25 °C (lit.)
vapor pressure 5.57 psi ( 20 °C)
refractive index n20/D 1.447(lit.)
Flash point >110°C
storage temp. 2-8°C
form Crystals, Crystalline Powder or Granules
Specific Gravity 1.626 (20℃)
color White
Water Solubility reacts violently exothermic
BRN 1237247
CAS DataBase Reference 1189-71-5(CAS DataBase Reference)
EPA Substance Registry System Sulfuryl chloride isocyanate (1189-71-5)


Risk and Safety Statements

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  14-22-34-42-20/22
Safety Statements  23-26-30-36/37/39-45
RIDADR  UN 3265 8/PG 2
WGK Germany  3
HazardClass  8
PackingGroup  II
HS Code  28510080
Toxicity LD50 orally in Rabbit: 640 mg/kg

Chlorosulfonyl isocyanate price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 142662 Chlorosulfonyl isocyanate 98% 1189-71-5 25g $60.2 2022-05-15 Buy
Sigma-Aldrich 142662 Chlorosulfonyl isocyanate 98% 1189-71-5 1kg $1080 2022-05-15 Buy
TCI Chemical C0886 Chlorosulfonyl Isocyanate >98.0%(GC) 1189-71-5 25g $34 2022-04-27 Buy
TCI Chemical C0886 Chlorosulfonyl Isocyanate >98.0%(GC) 1189-71-5 100g $95 2022-04-27 Buy
Sigma-Aldrich 691399 Chlorosulfonyl isocyanate Lonza quality, 99.0-100.3% (w/w) (T) 1189-71-5 1kg $412 2022-05-15 Buy
Product number Packaging Price Buy
142662 25g $60.2 Buy
142662 1kg $1080 Buy
C0886 25g $34 Buy
C0886 100g $95 Buy
691399 1kg $412 Buy

Chlorosulfonyl isocyanate Chemical Properties,Uses,Production

Chemical Properties

Clear liquid, colourless


Chlorosulfonyl isocyanate, a highly reactive chemical for chemical synthesis, is used as an intermediate used for production of antibiotics (Cefuroxime, penems), polymers as well as agrochemicals. Product Data Sheet


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 reacts with hydrocarbon alkenes via stepwise dipolar pathway to give N-chlorosulfonyl-β-lactams.

Global( 379)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
571-85586718 +8613336195806 China 29803 60
Henan DaKen Chemical CO.,LTD.
+86-371-66670886 China 16708 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 China 22021 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 +8617317452075 China 1809 55
21-51619050 China 30656 60
Anhui Royal Chemical Co., Ltd.
+86-25-86655873 +8613962173137 China 536 55
Yancheng Green Chemicals Co.,Ltd
25-86655873 China 96 58
career henan chemical co
+86-0371-86658258 China 29960 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254 CHINA 28229 58
Jinan Finer Chemical Co., Ltd
531-88989536 +8615508631887 China 2994 58

View Lastest Price from Chlorosulfonyl isocyanate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2022-09-27 Chlorosulfonyl isocyanate
US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
2022-07-06 Chlorosulfonyl isocyanate
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
2021-12-01 Chlorosulfonyl Isocyanate
US $10.50 / KG 1KG 98% 10 ton Hebei Crovell Biotech Co Ltd
N-(Oxomethylidene)sulfamoyl chloride N-Chlorosulphonyl isocyanate Chlorosulfonyl isocyanate ,99% Chlorosulfonyl isocyanate,N-Carbonylsulfamyl chloride, CSI Chlorosulfonyl isocy Chlorosulfonyl isocyanate, 98+% 50ML Chlorosulfonyl isocyanate, 98+% 5ML Sulfonyl chloride isocyanate Chlorsulfonyl Isocyanate Chlorosulfonyl isocyanate 98% Chlorosulfonyl isocyanate, 99.0-100.3% (w/w) (T) Chlorosulfonyl isocyate CHLOROSULFONYL ISOCYANATE CARBONYLSULFAMOYL CHLORIDE Sulfurylchlorideisocyanate CHLOROSULFONYL ISOCYANATE (CSI) Chlorosulfonyl lsocyanate Chlorosulfonyl isocyanate, 98+% SulfurisocyanatidoylChloride Cefuroxime Impurity 40 Chloro Sulfonyl Isocya Chlorosulfonyl Isocyanate > CHLOROSULFONYL ISOCYANATE FOR SYNTHESIS N-Carbonylsulfamyl chloride, CSI [(Chlorosulfonyl)imino]methanone sulfurisocyanatidic chloride N-chlorosulfonyl isocyanate CSI N-CARBONYLSULFAMYL CHLORIDE chlorosulphonyl isocyanate chloroSulfonyl 1189-71-5 ClSO2NCO CClNO3S Building Blocks Sulfur Compounds (for Synthesis) Organic Building Blocks Isocyanates Nitrogen Compounds Sulfur Compounds (for Synthesis) Synthetic Organic Chemistry Cyanogen chloride derivatives Hydrocyanic acid derivatives Pharmaceutical Intermediates