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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)
Bp:
189 °C (lit.)
Vapor pressure:
0.42 mmHg ( 20 °C)
Pricing and availability is not currently available.
Quality Segment
vapor density
2.7 (vs air)
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)
refractive index
n20/D 1.479 (lit.)
bp
189 °C (lit.)
mp
16-19 °C (lit.)
density
1.10 g/mL (lit.)
cation traces
Fe: ≤1 mg/kg
SMILES string
CS(C)=O
InChI
1S/C2H6OS/c1-4(2)3/h1-2H3
InChI key
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
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
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.
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This Item | |||
|---|---|---|---|
| description puriss. p.a., dried, ≤0.02% water | description Pharmaceutical Secondary Standard; Certified Reference Material | description ACS Reagent Grade. | description Pharmaceutical Secondary Standard; Certified Reference Material |
| Quality Level 100 | Quality Level 300 | Quality Level 100 | Quality Level 300 |
| grade puriss. p.a. | grade pharmaceutical secondary standard, certified reference material | grade - | grade pharmaceutical secondary standard, certified reference material |
| assay ≥99.9% (GC) | assay - | assay ≥99% (GC) | assay - |
| form liquid | form - | form liquid | form - |
| vapor pressure 0.42 mmHg ( 20 °C) | vapor pressure - | vapor pressure 0.42 mmHg ( 20 °C) | vapor pressure 0.42 mmHg ( 20 °C) |
| cation traces Fe: ≤1 mg/kg | cation traces - | cation traces - | cation traces - |
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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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