MilliporeSigma
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129925

Sigma-Aldrich

Methyl methanesulfonate

99%

Synonym(s):
Methanesulfonic acid methyl ester
Linear Formula:
CH3SO3CH3
CAS Number:
Molecular Weight:
110.13
Beilstein:
1098586
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

99%

form

liquid

refractive index

n20/D 1.414 (lit.)

bp

202-203 °C (lit.)

density

1.3 g/mL at 25 °C (lit.)

SMILES string

COS(C)(=O)=O

InChI

1S/C2H6O3S/c1-5-6(2,3)4/h1-2H3

InChI key

MBABOKRGFJTBAE-UHFFFAOYSA-N

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Packaging

5, 25, 100 g in glass bottle

Principle

DNA adduct; adds methyl groups to DNA at 7-guanine preferentially, but also 3-adenine and 3-guanine.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Muta. 1B - Repr. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT RE 2 Inhalation

Target Organs

Lungs

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

219.2 °F - closed cup

Flash Point(C)

104 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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