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/REAXYS Number: 506297
• EC Number: 204-706-1
• MDL number: MFCD00007454
• UNSPSC Code: 12352101
• PubChem Substance ID: 24870710
• NACRES: NA.22

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: GHS06,GHS05
• signalword: Danger
• hcodes: H290,H301 + H311,H314,H317,H330,H335
• pcodes: 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: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 2
• flash_point_f: 215.6 °F - closed cup
• flash_point_c: 102 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter