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1189-71-5

Name Chlorosulfonyl isocyanate
CAS 1189-71-5
EINECS(EC#) 214-715-2
Molecular Formula CClNO3S
MDL Number MFCD00011608
Molecular Weight 141.53
MOL File 1189-71-5.mol
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Chemical Properties

Appearance Clear liquid, colourless
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.)
Fp  >110°C
storage temp.  0-6°C
solubility  Chloroform (Slightly, Heated)
form  Crystals, Crystalline Powder or Granules
color  White
Specific Gravity 1.626 (20℃)
Water Solubility  reacts violently exothermic
Usage 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
BRN  1237247
CAS DataBase Reference 1189-71-5(CAS DataBase Reference)
EPA Substance Registry System 1189-71-5(EPA Substance)

Safety Data

Hazard Codes  C
Risk Statements 
R14:Reacts violently with water.
R22:Harmful if swallowed.
R34:Causes burns.
R42:May cause sensitization by inhalation.
R20/22:Harmful by inhalation and if swallowed .
Safety Statements 
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S30:Never add water to this product .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
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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