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CAS 124-63-0

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Methanesulfonyl chloride

Description:
Methanesulfonyl chloride, also known as mesyl chloride, is an organic compound with the chemical formula CH3SO2Cl. It is a colorless to pale yellow liquid that is highly reactive and has a pungent odor. This compound is classified as a sulfonyl chloride, which means it contains a sulfonyl group (SO2) bonded to a chlorine atom. Methanesulfonyl chloride is soluble in organic solvents such as dichloromethane and ether but is not soluble in water. It is primarily used as a reagent in organic synthesis, particularly for the conversion of alcohols and amines into their corresponding mesylates, which are more reactive and can be further transformed into various functional groups. Due to its reactivity, it can release toxic gases upon contact with water or moisture, necessitating careful handling and storage under an inert atmosphere. Safety precautions are essential when working with this compound, as it can cause severe irritation to the skin, eyes, and respiratory system.
Formula:CH3ClO2S
InChI:InChI=1S/CH3ClO2S/c1-5(2,3)4/h1H3
InChI key:InChIKey=QARBMVPHQWIHKH-UHFFFAOYSA-N
SMILES:S(C)(Cl)(=O)=O
Synonyms:
  • Chloro methyl sulfone
  • Chlorure de methanesulfonyle
  • Cloruro De Metanosulfonilo
  • Mesyl chloride
  • Methanesulfochloride
  • Methanesulfonic acid chloride
  • Methanesulphonyl Chloride
  • Methansulfonylchlorid
  • Methyl sulfochloride
  • Methylsulfonyl chloride
  • See more synonyms
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