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Sigma-Aldrich

Dimethyl sulfite

≥99.5%

Synonym(s):

Methyl sulfite

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About This Item

Linear Formula:
(CH3O)2SO
CAS Number:
616-42-2
Molecular Weight:
110.13
Beilstein:
1700256
EC Number:
210-481-0
MDL number:
MFCD00008415
UNSPSC Code:
12352100
PubChem Substance ID:
24853658

Assay

≥99.5%

form

liquid

refractive index

n20/D 1.410 (lit.)

bp

126-127 °C (lit.)

density

1.294 g/mL at 25 °C (lit.)

SMILES string

COS(=O)OC

InChI

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

InChI key

BDUPRNVPXOHWIL-UHFFFAOYSA-N

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Application

Suitable for electrolyte use.

Packaging

View returnable container options.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

Precautionary Statements

P261 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

100.4 °F - closed cup

Flash Point(C)

38 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Lin Feng et al.
Huan jing ke xue= Huanjing kexue, 31(2), 345-351 (2010-04-16)
A pilot-scale subsurface constructed wetland wastewater treatment system was sampled for one year to study the effects of bed aspect ratio, substrate medium size, water depth, HLR (hydraulic loading rate) and temperature (season) on removal of volatile alkylsulfides such as
Ana Borba et al.
The journal of physical chemistry. A, 109(16), 3578-3586 (2006-07-15)
The preferred conformations of dimethyl sulfite and their vibrational spectra were studied by matrix-isolation Fourier transform infrared spectroscopy and theoretical methods (density functional theory (DFT) and Moller-Plesset (MP2), with basis sets of different sizes, including the quadruple-zeta, aug-cc-pVQZ basis). Five
K Nagarajan et al.
Chemical communications (Cambridge, England), (18)(18), 1786-1787 (2002-09-25)
pH dependent reactivity differences of dimethylsulfite towards the title complex 1 demonstrate the crucial need of oxo-anionic coordination of sulfite to the molybdenum centre of 1 in the model reductive half reaction of sulfite oxidase.
M S Brody et al.
Biochimica et biophysica acta, 1253(2), 133-135 (1995-12-06)
We have undertaken a steady-state and rapid kinetic study of the reaction of enzyme with sulfite and dimethylsulfite. Methylation of sulfite results in a significant increase in Km and Kd for the substrate in the course of steady-state and rapid

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