Chlorosulfonyl isocyanate

Chlorosulfonyl isocyanate
Names
	IUPAC name Chlorosulfonyl isocyanate
	Other names N-Carbonylsulfamyl chloride; Chloropyrosulfonyl isocyanate; Sulfuryl chloride isocyanate
Identifiers
CAS Number	1189-71-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	64080 ;
ECHA InfoCard	100.013.378
EC Number	214-715-2;
PubChem CID	70918;
UNII	2903Y990SM ;
CompTox Dashboard (EPA)	DTXSID0061585 ;
	InChI InChI=1S/CClNO3S/c2-7(5,6)3-1-4 Key: WRJWRGBVPUUDLA-UHFFFAOYSA-N ; InChI=1/CClNO3S/c2-7(5,6)3-1-4 Key: WRJWRGBVPUUDLA-UHFFFAOYAX;
	SMILES ClS(=O)(=O)N=C=O;
Properties
Chemical formula	CNClO3S
Molar mass	141.53 g/mol
Appearance	colorless liquid
Density	1.626 g/cm3
Melting point	−44 °C (−47 °F; 229 K)
Boiling point	107 °C (225 °F; 380 K)
Solubility in water	decomposition
Solubility in other solvents	Chlorocarbons; MeCN
Refractive index (nD)	1.447
Structure
Molecular shape	tetrahedral at S
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	toxic, corrosive, flammable, ; reacts violently with water
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H314, H330, H332, H334
Precautionary statements	P260, P261, P264, P270, P271, P280, P284, P285, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P304+P341, P305+P351+P338, P310, P312, P320, P321, P322, P330, P342+P311, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 1 2 W
Safety data sheet (SDS)	"External MSDS"
Related compounds
Related compounds	Thionyl chloride; Cyanogen bromide; Phosphoryl chloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Chlorosulfonyl isocyanate is the chemical compound ClSO₂NCO, known as CSI. This compound is a versatile reagent in organic synthesis.

Names


IUPAC name Chlorosulfonyl isocyanate
Other names N-Carbonylsulfamyl chloride Chloropyrosulfonyl isocyanate Sulfuryl chloride isocyanate
Identifiers
CAS Number	1189-71-5^Y
3D model (JSmol)	Interactive image
ChemSpider	64080^Y
ECHA InfoCard	100.013.378
EC Number	214-715-2
PubChem CID	70918
UNII	2903Y990SM^Y
CompTox Dashboard (EPA)	DTXSID0061585
InChI InChI=1S/CClNO3S/c2-7(5,6)3-1-4^Y Key: WRJWRGBVPUUDLA-UHFFFAOYSA-N^Y InChI=1/CClNO3S/c2-7(5,6)3-1-4 Key: WRJWRGBVPUUDLA-UHFFFAOYAX
SMILES ClS(=O)(=O)N=C=O
Properties
Chemical formula	CNClO₃S
Molar mass	141.53 g/mol
Appearance	colorless liquid
Density	1.626 g/cm³
Melting point	−44 °C (−47 °F; 229 K)
Boiling point	107 °C (225 °F; 380 K)
Solubility in water	decomposition
Solubility in other solvents	Chlorocarbons MeCN
Refractive index (n_D)	1.447
Structure
Molecular shape	tetrahedral at S
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	toxic, corrosive, flammable, reacts violently with water
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H314, H330, H332, H334
Precautionary statements	P260, P261, P264, P270, P271, P280, P284, P285, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P304+P341, P305+P351+P338, P310, P312, P320, P321, P322, P330, P342+P311, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	3 1 2 W
Safety data sheet (SDS)	"External MSDS"
Related compounds
Related compounds	Thionyl chloride Cyanogen bromide Phosphoryl chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is ^YN ?) Infobox references