Chlorosulfonyl Isocyanate

CAS No. 1189-71-5

Formula: CClNO3S
Basic Info

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

Formula
CClNO3S
Molecular Weight
141.534
Exact Mass
140.929
LogP
0.8866
PSA
71.95
Synonyms

Sulfuryl chloride isocyanate

Sulfurisocyanatidic chloride

Chlorosulfonyl isocyanate

N-Carbonylsulfamyl chloride,CSI

N-(oxomethylidene)sulfamoyl chloride

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Properties
Appearance & Physical State
Clear liquid
Density
1.626
Boiling Point
106ºC
Melting Point
-44ºC
Flash Point
18.5ºC
Refractive Index
1.445-1.449
Water Solubility
reacts violently exothermic
Stability
Stable under normal temperatures and pressures. Fuming liquid.
Storage Condition
0-6ºC
Vapor Pressure
5.57 psi ( 20 °C)
Safety Info
Safety Statements
S23-S26-S36/37/39-S45
WGK Germany
3
Risk Statements
R14; R20/22; R34; R42
HS Code
2929109000
RIDADR
UN 3265
Hazard Class
8
Packing Group
II
Hazard Codes
Spectrum
NMR Spectrum 13C NMR : Predict
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