Dimethyl sulfoxide (DMSO for short) is a sulfur-containing organic compound, English Dimethylsulfoxide, molecular formula is (CH3) 2SO, at room temperature is colorless and odorless transparent liquid, with hypersonic flammable Chemicalbook liquid, both high polarity, high boiling point, aprotic, miscible in water characteristics. Toxicity is very low, good thermal stability, and alkane does not mix, can dissolve in water, ethanol, propanol, ether, benzene and chloroform and other most organic matter, known as "universal solvent".

Dimethyl sulfoxide is widely used as solvent and reaction reagent, especially as processing solvent and drawing solvent in acrylonitrile polymerization, as polyurethane synthesis and drawing solvent, as polyamide, polyimide and polysulfone resin synthesis solvent, as well as aromatic, butadiene extraction solvent and the synthesis of chlorofluoroaniline solvent. In addition, dimethyl sulfoxide is also directly used as the raw material and carrier of some drugs in pharmaceutical industry Chemicalbook. Dimethyl sulfoxide itself has anti-inflammatory analgesic, diuretic, sedation and other effects, also known as "panacea", often as an active component of analgesic drugs added to drugs. It has the special property of penetrating skin easily, causing users to feel the taste like oyster.

As organic solvents, reaction media and organic synthesis intermediates. Very wide use. Highly selective extraction ability, and polysulfone resin used in acrylic resin and condensation polymerization solvent, polyacrylonitrile and solvent polymerization reel off raw silk from cocoons Chemicalbook of acetate fiber, the separation of alkanes and aromatics extraction solvents, used for aromatics, butadiene extraction, acrylic spinning, the plastic solvent and organic synthesis of dye, pharmaceutical and other industrial reaction medium. Medicine, anti-inflammatory analgesic effect, strong penetration of the skin.