Category
Chemical Primary Standard
CAS Number
1189-71-5
Molecular Formula
CClNO3S
Molecular Weight
141.53 g/mol
Synonym

Chlorosulfonyl isocyanate; Sulfuryl chloride isocyanate; Chlorosulfonylisocyanate;  Chlorosulphonyl isocyanate; ((chlorosulfonyl)imino)methanone; N-(oxomethylidene)sulfamoyl chloride

Keywords
Miscellaneous compounds
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Chlorsulfonyl isocyanate is a reactive organic compound containing both a sulfonyl chloride and an isocyanate functional group. It is widely used as a versatile reagent in organic synthesis, particularly for preparing sulfonylureas, sulfonamides, and other nitrogen- and sulfur-containing compounds in pharmaceuticals and agrochemicals.