Home Categories Organic Chemistry Dimethyl sulfoxide
A3129612

Dimethyl sulfoxide , >99.8%(GC) , 67-68-5

Synonym(s):
DMSO;Dimethyl sulfoxide;Sulfoxide;Methyl Sulfoxide;Methylsulfinylmethane

CAS NO.:67-68-5

Empirical Formula: C2H6OS

Molecular Weight: 78.13

MDL number: MFCD00002089

EINECS: 200-664-3

Pack Size Price Stock Quantity
500ML RMB87.20 In Stock
2.5L RMB375.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 18.4 °C
Boiling point: 189 °C(lit.)
Density  1.100 g/mL at 20 °C
vapor density  2.7 (vs air)
vapor pressure  0.42 mm Hg ( 20 °C)
refractive index  n20/D 1.479(lit.)
FEMA  3875 | METHYLSULFINYLMETHANE
Flash point: 192 °F
storage temp.  Store at +5°C to +30°C.
solubility  H2O: miscible (completely)
pka 35(at 25℃)
form  liquid (temperature dependent)
color  clear colorless
Odor Mild garlic odor
Relative polarity 0.444
explosive limit 1.8-63.0%(V)
Odor Type alliaceous
Water Solubility  Soluble in water, methanol, acetone, ether, benzene, chloroform.
FreezingPoint  18.4℃
Sensitive  Hygroscopic
λmax λ: 285 nm Amax: ≤0.20
λ: 295 nm Amax: ≤0.20
JECFA Number 507
Merck  14,3259
BRN  506008
Dielectric constant 41.9(55℃)
Stability: Stable. Incompatible with a very wide range of materials, including acid chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wool + trichloroacetic acid. Reacts violently with a number of materials - consult a full data sheet before use. Hygroscopic.
InChIKey IAZDPXIOMUYVGZ-UHFFFAOYSA-N
LogP -1.35

Description and Uses

First synthesized in 1866 by Alexander Zaytsev in the Russian Empire, dimethyl sulfoxide is an organosulfur compound. This colorless liquid is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water.

Suitable for HPLC, spectrophotometry, environmental testing

Safety

Symbol(GHS) 
GHS08
Signal word  Warning
Hazard statements  H227-H320-H373
Precautionary statements  P210e-P280a-P370+P378a-P403+P235-P501a-P260-P264-P305+P351+P338+P337+P313-P314-P501
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25-37/39-26-36-23
RIDADR  NA 1993 / PGIII
WGK Germany  1
RTECS  PV6210000
3
Autoignition Temperature 215 °C
TSCA  Yes
HS Code  29309070
Toxicity LD50 orally in rats: 17.9 ml/kg (Bartsch)

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