ChemicalBook > CAS DataBase List > Chlorosulfonyl isocyanate

Chlorosulfonyl isocyanate

Product Name
Chlorosulfonyl isocyanate
CAS No.
1189-71-5
Chemical Name
Chlorosulfonyl isocyanate
Synonyms
CSI;sulfurisocyanatidic chloride;chlorosulphonyl isocyanate;[(Chlorosulfonyl)imino]methanone;N-chlorosulfonyl isocyanate;chloroSulfonyl;N-CARBONYLSULFAMYL CHLORIDE;N-Carbonylsulfamyl chloride, CSI;Chlorosulfonyl isocy;Cefuroxim Impurity 17
CBNumber
CB8317025
Molecular Formula
CClNO3S
Formula Weight
141.53
MOL File
1189-71-5.mol
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Chlorosulfonyl isocyanate Property

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
solubility 
Chloroform (Slightly, Heated)
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)
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Safety

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
F 
10-21-19
HazardClass 
8
PackingGroup 
II
HS Code 
28510080
Toxicity
LD50 orally in Rabbit: 640 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
142662
Product name
Chlorosulfonyl isocyanate
Purity
98%
Packaging
25g
Price
$69.9
Updated
2025/07/31
Sigma-Aldrich
Product number
142662
Product name
Chlorosulfonyl isocyanate
Purity
98%
Packaging
1kg
Price
$1280
Updated
2025/07/31
TCI Chemical
Product number
C0886
Product name
Chlorosulfonyl Isocyanate
Purity
>98.0%(GC)
Packaging
25g
Price
$37
Updated
2025/07/31
TCI Chemical
Product number
C0886
Product name
Chlorosulfonyl Isocyanate
Purity
>98.0%(GC)
Packaging
100g
Price
$101
Updated
2025/07/31
Sigma-Aldrich
Product number
691399
Product name
Chlorosulfonyl isocyanate
Purity
Lonza quality, 99.0-100.3% (w/w) (T)
Packaging
1kg
Price
$313
Updated
2025/07/31
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Chlorosulfonyl isocyanate Chemical Properties,Usage,Production

Chemical Properties

Clear liquid, colourless

Uses

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

Uses

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.

Chlorosulfonyl isocyanate Preparation Products And Raw materials

Raw materials

Preparation Products

4-(2-KETO-1-BENZIMIDAZOLINYL)PIPERIDINE
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Chlorosulfonyl isocyanate Suppliers

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View Lastest Price from Chlorosulfonyl isocyanate manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
Chlorosulfonyl isocyanate 1189-71-5
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10
Release date
2024-11-28
Ningxia Jinhua Chemical Co.,Ltd
Product
Chlorosulfonyl isocyanate(CSI) 1189-71-5
Price
US $0.00/Kg/Drum
Min. Order
1000KG
Purity
99.2%
Supply Ability
10mt
Release date
2021-02-09
Yancheng Green Chemicals Co.,Ltd
Product
Chlorosulfonyl isocyanate(CSI) 1189-71-5
Price
US $0.00/Kg/Drum
Min. Order
1000KG
Purity
99.2%
Supply Ability
20mt
Release date
2021-02-09

1189-71-5, Chlorosulfonyl isocyanateRelated Search:

Propyl isocyanate Thionyl chloride Tosylmethyl isocyanide BENZOYL ISOCYANATE Sodium chloride Hexyl isocyanate SULFURYL FLUORIDE Sulfosulfuron p-Toluenesulfonyl Isocyanate Polyvinyl chloride Choline chloride Ammonium chloride Phenylmethylsulfonyl fluoride Benzyl isocyanate Calcium chloride CHLOROMETHYL PHENYL SULFIDE Potassium chloride 3-Isocyanatopropyltriethoxysilane

  • N-Carbonylsulfamyl chloride, CSI
  • N-(Oxomethylidene)sulfamoyl chloride
  • N-Chlorosulphonyl isocyanate
  • [(Chlorosulfonyl)imino]methanone
  • Chlorosulfonyl isocyanate ,99%
  • Chlorosulfonyl isocyanate,N-Carbonylsulfamyl chloride, CSI
  • Chlorosulfonyl isocy
  • sulfurisocyanatidic chloride
  • Chlorosulfonyl isocyanate, 98+% 50ML
  • Chlorosulfonyl isocyanate, 98+% 5ML
  • SulfurisocyanatidoylChloride
  • Cefuroxime Impurity 40
  • N-chlorosulfonyl isocyanate
  • Sulfonyl chloride isocyanate
  • CSI
  • Chlorsulfonyl Isocyanate
  • Chlorosulfonyl isocyanate 98%
  • Chlorosulfonyl isocyanate, 99.0-100.3% (w/w) (T)
  • Chloro Sulfonyl Isocya
  • Chlorosulfonyl isocyate
  • CHLOROSULFONYL ISOCYANATE
  • CARBONYLSULFAMOYL CHLORIDE
  • N-CARBONYLSULFAMYL CHLORIDE
  • Sulfurylchlorideisocyanate
  • CHLOROSULFONYL ISOCYANATE (CSI)
  • chlorosulphonyl isocyanate
  • Chlorosulfonyl lsocyanate
  • Chlorosulfonyl isocyanate, 98+%
  • chloroSulfonyl
  • Chlorosulfonyl Isocyanate &gt
  • CHLOROSULFONYL ISOCYANATE FOR SYNTHESIS
  • Chlorosulfoxyl isocyanate
  • Chlorosulfonic acid isocyanate
  • Cefuroxim Impurity 17
  • 1189-71-5
  • 1779-05-2
  • 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