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34869

Sigma-Aldrich

Dimethyl sulfoxide

suitable for HPLC, ≥99.7%

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Synonym(s):
DMSO
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
Beilstein:
506008
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.7 (vs air)

Quality Level

vapor pressure

0.42 mmHg ( 20 °C)

Assay

≥99.7%

form

liquid

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

technique(s)

HPLC: suitable

impurities

≤0.002% non-volatile matter
≤0.2% water (Karl Fischer)

transmittance

270 nm, ≥20%
280 nm, ≥50%
300 nm, ≥80%
350 nm, ≥98%

refractive index

n20/D 1.479 (lit.)

bp

189 °C (lit.)

mp

16-19 °C (lit.)

density

1.10 g/mL (lit.)

application(s)

food and beverages

SMILES string

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI key

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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1 of 4

This Item
41640D587934943
Dimethyl sulfoxide suitable for HPLC, ≥99.7%

Sigma-Aldrich

34869

Dimethyl sulfoxide

-
Dimethyl sulfoxide puriss. p.a., ACS reagent, ≥99.9% (GC)

Sigma-Aldrich

41640

Dimethyl sulfoxide

Essential Grade
Dimethyl sulfoxide ReagentPlus®, ≥99.5%

Sigma-Aldrich

D5879

Dimethyl sulfoxide

-
Dimethyl sulfoxide puriss. p.a., dried, ≤0.02% water

Sigma-Aldrich

34943

Dimethyl sulfoxide

-
vapor pressure

0.42 mmHg ( 20 °C)

vapor pressure

0.42 mmHg ( 20 °C)

vapor pressure

0.42 mmHg ( 20 °C)

vapor pressure

0.42 mmHg ( 20 °C)

assay

≥99.7%

assay

≥99.9% (GC)

assay

≥99.5%

assay

≥99.9% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

573 °F

autoignition temp.

573 °F

autoignition temp.

573 °F

autoignition temp.

573 °F

expl. lim.

42 %, 63 °F

expl. lim.

42 %, 63 °F

expl. lim.

42 %, 63 °F

expl. lim.

42 %, 63 °F

General description

Dimethyl sulfoxide (DMSO) is a polar organic solvent. DMSO activated by various electrophiles (oxalyl chloride) has been used to oxidize various alcohols (primary, secondary, allylic, benzylic, hindered and bicyclic). Carbonyl compounds are formed as reaction products. Due to its higher stability, it has been proposed as an alternate solvent for methyl cellosolve for use in ninhydrin reaction.

Application

Suitable for HPLC, spectrophotometry, environmental testing

Caution

Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.

Other Notes

For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table
Important notice
  • The article number 34869-4X2.5L will be discontinued. Please order the single bottle 34869-2.5L which is physically identical with the same exact specifications.
  • The article number 34869-6X1L will be discontinued. Please order the single bottle 34869-1L which is physically identical with the same exact specifications.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

188.6 °F - closed cup

Flash Point(C)

87 °C - closed cup


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A RAPID PERMETHYLATION OF GLYCOLIPID, AND POLYSACCHARIDE CATALYZED BY METHYLSULFINYL CARBANION IN DIMETHYL SULFOXIDE.
S HAKOMORI
Journal of biochemistry, 55, 205-208 (1964-02-01)
Oxidation of alcohols by ?activated? dimethyl sulfoxide. A preparative, steric and mechanistic study.
Omura K and Swern D.
Tetrahedron, 34(11), 1651-1660 (1978)
Amino acid analysis: aqueous dimethyl sulfoxide as solvent for the ninhydrin reaction.
S Moore
The Journal of biological chemistry, 243(23), 6281-6283 (1968-12-10)
Björn Zörner et al.
Brain : a journal of neurology, 137(Pt 6), 1716-1732 (2014-04-17)
Anatomical plasticity such as fibre growth and the formation of new connections in the cortex and spinal cord is one known mechanism mediating functional recovery after damage to the central nervous system. Little is known about anatomical plasticity in the
Mulmudi Hemant Kumar et al.
Advanced materials (Deerfield Beach, Fla.), 26(41), 7122-7127 (2014-09-13)
Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the

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