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Sulfur Compounds (Thiols, Sulfides, Sulfonates)

Chlorosulfonyl Isocyanate

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Buy Chlorosulfonyl Isocyanate (CAS 1189-71-5) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Ships from India to 120+ countries.

Pack sizes
Chlorosulfonyl Isocyanate chemical structure
CAS number1189-71-5
FormulaCClNO3S
Molar mass141.53 g/mol
InChIKeyWRJWRGBVPUUDLA-UHFFFAOYSA-N
IUPAC nameN-(oxomethylidene)sulfamoyl chloride

About Chlorosulfonyl Isocyanate

Zemixal supplies Chlorosulfonyl Isocyanate within its pharma Intermediates & Building Blocks portfolio. Key data: CAS 1189-71-5, formula CClNO3S and molar mass 141.53 g/mol.

Use cases we see most often

  • Fine chemical synthesis
  • Organic synthesis

Safe handling

Hazard communication follows GHS (Danger: H302, H312, H314 and H330). Our SDS lists exposure controls and first-aid measures.

Order it in 100 mg, 250 mg, 1 g and 5 g packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Fine chemical synthesis
  • Organic synthesis

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Chlorosulfonyl Isocyanate
Product nameChlorosulfonyl Isocyanate
Catalogue numberZX-044735
CAS number1189-71-5
IUPAC nameN-(oxomethylidene)sulfamoyl chloride
Molecular formulaCClNO3S
Molar mass141.53 g/mol
Exact mass140.9287
XLogP31.5
H-bond donors / acceptors0 / 4
Topological polar surface area72 Ų
InChIKeyWRJWRGBVPUUDLA-UHFFFAOYSA-N
SMILESC(=NS(=O)(=O)Cl)=O
PubChem CID70918
SynonymsSulfuryl chloride isocyanate, Chlorosulphonyl isocyanate, ((chlorosulfonyl)imino)methanone, sulfurisocyanatidic chloride, N-Carbonylsulfamyl chloride, chlorsulfonyl isocyanate, N-Chlorosulfonyl isocyanate, sulfurisocyanatidoyl chloride, N-(oxomethylene)sulfamoyl chloride, chlorsulfonylisocyanate

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS06 Acute toxicity
Acute toxicity
GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H314Causes severe skin burns and eye damage
  • H330Fatal if inhaled
  • H332Harmful if inhaled
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements P233, P260, P261, P264, P270, P271, P280, P284, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P320, P321, P330, P342 + P316, P362 + P364, P363, P403, P403 + P233

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Chlorosulfonyl Isocyanate
100 mgQuoted on request
250 mgQuoted on request
1 gQuoted on request
5 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Chlorosulfonyl Isocyanate

Which CAS number identifies Chlorosulfonyl Isocyanate?
Chlorosulfonyl Isocyanate is registered under CAS 1189-71-5. You may also see it listed as Sulfuryl chloride isocyanate, Chlorosulphonyl isocyanate, ((chlorosulfonyl)imino)methanone. Our catalogue number for this item is ZX-044735.
What are the formula and molar mass of Chlorosulfonyl Isocyanate?
For Chlorosulfonyl Isocyanate, its formula is CClNO3S and its molar mass is 141.53 g/mol. The systematic (IUPAC) name is N-(oxomethylidene)sulfamoyl chloride. InChIKey WRJWRGBVPUUDLA-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Chlorosulfonyl Isocyanate?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 100 mg, 250 mg, 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with Chlorosulfonyl Isocyanate?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Chlorosulfonyl Isocyanate to my country?
Yes. Because Chlorosulfonyl Isocyanate is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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