Dimethyl sulfoxide
Dimethyl sulfoxide
Dimethyl sulfoxide
Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound with the molecular formula (CH3)2SO.
Request a QuoteDimethyl sulfoxide (DMSO) is a sulfur-containing organic compound with the molecular formula (CH3)2SO.
Synonyms: DMSO; dimethyl sulphoxide;
Molecular Formula: C2H6OS
Molecular Weight: 78.13
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.) |
Flash Point |
192 °F |
Storage Temperature |
Store at +5 °C to +30 °C. |
Solubility |
H2O: miscible (completely) |
pKa |
35 (at 25 °C) |
Physical Form |
Liquid (temperature dependent) |
Color |
Clear, colorless |
Relative Polarity |
0.444 |
Odor |
Mild garlic odor |
Evaporation Rate |
4.3 |
Odor Type |
Alliaceous |
Explosive Limits |
1.8–63.0% (V) |
Water Solubility |
Soluble in water, methanol, acetone, ether, benzene, and chloroform. |
Freezing Point |
18.4 °C |
Sensitivity |
Hygroscopic |
Symbol (GHS) |
|
Signal Word |
Warning |
Hazard Codes |
Xi |
Autoignition Temperature |
215 °C |
HS Code |
29309070 |
Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound with molecular formula: (CH3)2SO. It is soluble in water, ethanol, propanol, ether, benzene, and chloroform, as well as in many other organic substances. It is commonly referred to as the “universal solvent.” Dimethyl sulfoxide is a widely used organic solvent with strong dissolving capability. It can dissolve most organic compounds, including carbohydrates, polymers, and peptides, as well as many inorganic salts and gases. It can dissolve a certain amount of solute whose weight is equal to 50–60% of itself (other common solvents typically dissolve only 10–20%), making it important for sample handling and high-speed drug screening. Under certain conditions, contact between dimethyl sulfoxide and chloride can even lead to an explosive reaction.
Dimethyl sulfoxide is widely used as a solvent and reagent—particularly as a processing reagent and spinning solvent in acrylonitrile polymerization for polyurethane synthesis. It can also be used as a synthetic solvent for polyamide, polyimide, and polysulfone resin, as well as an extraction solvent for aromatic hydrocarbons and butadiene extraction. In addition, dimethyl sulfoxide can be used directly as a raw material or carrier for certain pharmaceutical products.
