471259

Methanesulfonyl chloride

≥99.7%

• Synonym(s): Methyl sulfonyl chloride, Mesyl chloride
• Linear Formula: CH₃SO₂Cl
• CAS Number: 124-63-0
• Molecular Weight: 114.55
• Beilstein: 506297
• EC Number: 204-706-1
• MDL number: MFCD00007454
• PubChem Substance ID: 24870710

Properties

• Quality Level: 200
• Assay: ≥99.7%
• refractive index: n20/D 1.452 (lit.)
• bp: 60 °C/21 mmHg (lit.)
• density: 1.48 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: CS(Cl)(=O)=O
• InChI: 1S/CH3ClO2S/c1-5(2,3)4/h1H3
• InChI key: QARBMVPHQWIHKH-UHFFFAOYSA-N

Description

Application

Methanesulfonyl chloride can be used for the mesylation of primary alcohols to synthesize the corresponding methanesulfonates. It may also be used for the conversion of amines to the corresponding sulfonamides.

Safety Information

• Pictograms: GHS05,GHS06
• Signal Word: Danger
• Hazard Statements: H290 - H301 + H311 - H314 - H317 - H330 - H335
• Precautionary Statements: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 2
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves