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Merck
CN

108618

Dimethyl sulfite

99%

Synonym(s):

Methyl sulfite

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About This Item

Linear Formula:
(CH3O)2SO
CAS Number:
616-42-2
Molecular Weight:
110.13
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24846815
EC Number:
210-481-0
Beilstein/REAXYS Number:
1700256
MDL number:
MFCD00008415

Key Documents

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Product Name

Dimethyl sulfite, 99%

InChI key

BDUPRNVPXOHWIL-UHFFFAOYSA-N

InChI

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

SMILES string

COS(=O)OC

assay

99%

refractive index

n20/D 1.410 (lit.)

bp

126-127 °C (lit.)

density

1.294 g/mL at 25 °C (lit.)

Quality Level

200

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Application

The conformations and vibrational spectra of dimethyl sulfite was studied by matrix-isolation fourier transform infrared spectroscopy and to study its conformational selective aggregation. It may be used in organic synthesis.

General description

Dimethyl sulfite is an insect repellent and also experimentally identified as a mutagenic agent.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

100.4 °F - closed cup

flash_point_c

38 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ7377
MKCZ2674
MKCZ0298
MKCT3922
SHBP4053

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Conformational cooling and conformation selective aggregation in dimethyl sulfite isolated in solid rare gases.
Borba A, et al.
Journal of Molecular Structure, 794(1), 196-203 (2006)
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
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.
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
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

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