34943
Dimethyl sulfoxide
puriss. p.a., dried, ≤0.02% water
Synonym(s):
DMSO
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About This Item
Linear Formula:
(CH3)2SO
CAS Number:
Molecular Weight:
78.13
UNSPSC Code:
12191502
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-664-3
Beilstein/REAXYS Number:
506008
MDL number:
Assay:
≥99.9% (GC)
Vapor pressure:
0.42 mmHg ( 20 °C)
InChI key
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
InChI
1S/C2H6OS/c1-4(2)3/h1-2H3
SMILES string
CS(C)=O
Quality Level
vapor pressure
0.42 mmHg ( 20 °C)
grade
puriss. p.a.
assay
≥99.9% (GC)
form
liquid
autoignition temp.
573 °F
quality
dried
expl. lim.
42 %, 63 °F
impurities
≤0.0001% heavy metals (as Pb), ≤0.001% free acid (as H2SO4), ≤0.002% non-volatile matter, ≤0.02% water, ≤0.03% water (Karl Fischer)
density
1.10 g/mL (lit.)
cation traces
Fe: ≤1 mg/kg
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General description
Dimethyl sulfoxide (DMSO) is a polar 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. It has been proposed as an alternate solvent for methyl cellosolve for use in ninhydrin reaction, due to its high stability.
Application
Dimethyl sulfoxide (DMSO) has been used as a solvent in the high-throughput compound screening studies conducted on Mtb (Mycobacterium tuberculosis) H37Rv host cells.
Other Notes
For information on dimethyl sulfoxide miscibility, please visit the following link:
Dimethyl Sulfoxide Miscibility/Immiscibility Table
Dimethyl Sulfoxide Miscibility/Immiscibility Table
Disclaimer
Supercools easily and remelts slowly at room temperature. Solidified product can be re-liquified by warming to room temperature without detriment to the product.
Storage Class
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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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
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