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Methanesulfonic acid

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About This Item

Linear Formula:
CH3SO3H
CAS Number:
75-75-2
Molecular Weight:
96.11
Beilstein/REAXYS Number:
1446024
EC Number:
200-898-6
MDL number:
MFCD00007518
UNSPSC Code:
12352100
NACRES:
NA.21

biological source

synthetic

Quality Level

500

vapor density

3.3 (vs air)

vapor pressure

1 mmHg ( 20 °C)

assay

98.0-102.0% (1 M NaOH, T)

form

liquid

impurities

≤5 ppm ethyl methansesulfonate (GC)
≤5 ppm isopropyl methanesulfonate (GC)
≤5 ppm methanesulfonyl chloride (GC)
≤5 ppm methyl methanesulfonate (GC)

evapn. residue

≤0.1%

refractive index

n20/D 1.429 (lit.)

bp

167 °C/10 mmHg (lit.)

mp

17-19 °C (lit.)

density

1.475-1.485 g/mL at 20 °C
1.481 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 ppm
sulfate (SO42-): ≤200 ppm

cation traces

Ta: ≤5 ppm

suitability

corresponds for IR spectroscopy

SMILES string

O=S(O)(C)=O

InChI

1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)

InChI key

AFVFQIVMOAPDHO-UHFFFAOYSA-N

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

372.2 °F - closed cup

flash_point_c

189 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCB2111
BCBT5968
BCBM8972V
BCBP8446V
BCBG8834V

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Renata Solarska et al.
Nanoscale, 4(5), 1553-1556 (2012-02-01)
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Physical chemistry chemical physics : PCCP, 15(14), 5140-5150 (2013-03-02)
The gas phase reaction between methane sulfonic acid (CH3SO3H; MSA) and the hydroxyl radical (HO), without and with a water molecule, was investigated with DFT-B3LYP and CCSD(T)-F12 methods. For the bare reaction we have found two reaction mechanisms, involving proton
Chris Twelves et al.
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Data from two phase 3 studies of eribulin were pooled in analyses initially requested by the European Medicines Agency to assess whether specific patient subgroups, previously treated with an anthracycline and a taxane, benefited from eribulin. Study 305/EMBRACE included women
Eric D Nacsa et al.
Organic letters, 15(1), 38-41 (2012-12-15)
The cyclopropenone catalyzed nucleophilic substitution of alcohols by methanesulfonate ion with inversion of configuration is described. This work provides an alternative to the Mitsunobu reaction that avoids the use of azodicarboxylates and generation of hydrazine and phosphine oxide byproducts. This
Gabriel Nowak et al.
Neuropharmacology, 84, 46-51 (2014-05-07)
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