Synonyms: Methyl sulfonyl chloride; Mesyl chloride
CAS Number: 124-63-0
Formula: CH3ClO2S
Formula Weight: 114.55
Linear Formula: CH3SO2Cl
MDL No.: MFCD00007454
Purity: >=98.0% (AT)
Boiling Point: 60 C/21 mmHg(lit.)
Density: 1.48 g/mL at 25 C(lit.)
Refractive Index: n20/D 1.452(lit.); n20/D 1.452
Beilstein Registry Number: 506297
EC Number: 204-706-1
UNSPSC Code: 12352000
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.
RTECS: PB2790000
RIDADR: UN 3246 6.1(8) / PGI
WGK Germany: 2
Flash Point(F): 235.4 F
Flash Point(C): 113 C
R Codes: 24/25-26-34-37
S Codes: 26-28-36/37/39-45
IOD Codes: T+
Symbol: GHS05, GHS06
Signal Word: Danger
Hazard Statements: H301 + H311-H314-H317-H330-H335
Precautionary statements: Missing Phrase - N15.00950417-P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338