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What is DMSO (CAS 67-68-5) in chemistry?

Nov 18, 2025 Leave a message

CAS 67-68-5 Dimethyl sulfoxide (DMSO) is a widely used solvent which is miscible with water and a variety of other solvents. It is also known as methyl sulfoxide and sulfinylbismethane, as well as by dozens of trade names.

 

CAS No. 67-68-5
Formula

C2H6OS

Molar mass 78.13 g/mol
Appearance Colorless liquid
Melting point 19°C
Boiling point 189 °C
Water solubility Miscible

 

What is DMSO (CAS 67-68-5) used for?

 

DMSO (dimethyl sulfoxide) is a polar aprotic solvent, meaning it can stabilise charged species without participating in hydrogen bonding with nucleophiles.

 

In SN2 reactions, it enhances the nucleophilicity of the reactants, resulting in faster reaction rates than with polar protic solvents.

 

It is often used in the oxidation of alcohols, acting as a solvent that improves interaction between reagents.

 

In nucleophilic aromatic substitution, DMSO provides a medium in which the aryl halide can react effectively with strong nucleophiles.

 

Due to its low toxicity and ability to penetrate biological membranes, DMSO has various pharmaceutical applications and is used as a cryoprotectant.

 

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Henan Gneebio was established in 2016, adhering to thecorporate philosophy of "global chemical raw material supplier" and focusing on high-quality chemical industries. The company primarily deals chemical raw materials, such as dichloromethane; methyl sulfoxide DMSO (industrial and pharmaceutical grade); ethylene glycol (MEG); p-Xylene, etc.

All our chemical productshave obtained international certifications including REACH, ISO, FMQS, HALAL, andHalal certification, ensuring quality and global recognition, We have warehouses in coreports such as Qingdao, Tianiin, and Shanghai, with a 15-day express delivery service.

 

Packaging 

 

Package

Quantity/20'FCL

160KGS Drum

12.8MTS

800KGS IBC Drum

16MTS

IOS Tank

18.5MTS

 

dmso solvent

 

dimethyl sulfoxide price

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