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64270

Sigma-Aldrich

Methanesulfonyl chloride

purum, ≥98.0% (AT)

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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
UNSPSC Code:
12352101
PubChem Substance ID:
329759947
NACRES:
NA.22

grade

purum

Quality Level

200

Assay

≥98.0% (AT)

refractive index

n20/D 1.452 (lit.)
n20/D 1.452

bp

60 °C/21 mmHg (lit.)

density

1.48 g/mL at 25 °C (lit.)

SMILES string

CS(Cl)(=O)=O

InChI

1S/CH3ClO2S/c1-5(2,3)4/h1H3

InChI key

QARBMVPHQWIHKH-UHFFFAOYSA-N

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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.

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品

Certificates of Analysis (COA)

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Methanesulfonyl Chloride.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2007)
Methanesulfonyl Chloride.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2007)
Base-free monosulfonylation of amines using tosyl or mesyl chloride in water
Kamal A
Tetrahedron Letters, 49(2), 348-353 (2008)
Water-solvent method for tosylation and mesylation of primary alcohols promoted by KOH and catalytic amines.
Morita J I
Green Chemistry, 7(10), 711-715 (2005)
E A Connor et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 3(11), 2164-2171 (1983-11-01)
Excitatory postsynaptic currents (EPSCs), miniature excitatory postsynaptic currents (MEPSCs), and acetylcholine-induced current fluctuations (noise) have been studied in voltage-clamped bullfrog parasympathetic ganglion cells of the atrial septum. EPSCs were also recorded from voltage-clamped sympathetic B cells and, in general, it
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