Dimethyl Sulfoxide (DMSO) is a highly polar, colourless liquid organic compound with the formula (CH₃)₂SO. Known for its unique solvent properties, DMSO is widely used in industrial, pharmaceutical, and laboratory settings. Its ability to penetrate biological membranes allows it to transport other compounds through the skin, making it valuable in medical and veterinary applications. In research and laboratory environments, DMSO is frequently employed as a solvent for both organic and inorganic substances due to its ability to dissolve a wide range of materials. Additionally, it is used in cryopreservation to protect cells and tissues during freezing processes, as well as in certain polymer and microelectronics manufacturing processes.

Photo of Dimethyl Sulfoxide
CAS Number: ​​67-68-5
UN Number: NA
Hazard Class: NA
Packing Group: NA
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What is the CAS Number of Dimethyl Sulfoxide?

The CAS number of Dimethyl Sulfoxide is ​​67-68-5.


What is the UN Number of Dimethyl Sulfoxide?

Dimethyl Sulfoxide does not have a UN Number.


What is the Hazard Class of Dimethyl Sulfoxide?

Dimethyl Sulfoxide does not have a Hazard Class. 


What is the Packing Group of Dimethyl Sulfoxide?

Dimethyl Sulfoxide does not have a classified Packing Group.

Physical properties of Dimethyl Sulfoxide

Physical State: Liquid
Appearance: Clear
Odor: No information available
Odor Threshold: No information available
pH: No information available
Melting Point / Range: 16 - 19 °C
Boiling Point / Range: 189 °C
Molecular Formula: (CH₃)₂SO
Molecular Weight: 78.13
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Safety profile of Dimethyl Sulfoxide

Make sure to read the Material Safety Data Sheet (MSDS) below for comprehensive safety information regarding Dimethyl Sulfoxide. You’ll find essential first aid measures, hazard details, fire precautions, spill management, proper handling and storage guidelines, recommended protective gear, and more.Ensure you understand the potential risks associated with Dimethyl Sulfoxide before use.

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FAQs

Dimethyl Sulfoxide (DMSO) is primarily used as a powerful solvent in industrial and laboratory settings due to its ability to dissolve a wide range of organic and inorganic compounds. In medical and veterinary applications, DMSO serves as a carrier for delivering drugs through the skin, thanks to its membrane-penetrating properties.

It’s also commonly used in cryopreservation to protect cells and tissues during freezing. Additionally, DMSO has applications in polymer and electronics manufacturing, where it aids in various production processes.

Pricing for Dimethyl Sulfoxide varies based on factors like order quantity and shipping destination. At East Harbour Group, we simplify the process by offering tailored quotes that reflect your specific requirements, ensuring competitive pricing and timely delivery. Reach out to our team for a personalised quote.


Yes. East Harbour Group offers global shipping for Dimethyl Sulfoxide, with experience handling international logistics to destinations worldwide, including Europe and Asia. With offices in both the UK and India, we are well-positioned to optimise your supply chain and provide a seamless delivery experience.


Dimethyl Sulfoxide (DMSO) has several safety considerations. It is classified as an acute oral toxin (Category 4), meaning it can be harmful if swallowed, and it may cause skin and eye irritation (Category 2).

Exposure can result in skin redness or inflammation, and if it contacts the eyes, it may cause irritation and discomfort. DMSO should be handled with protective gloves, eyewear, and proper ventilation to minimise risks.

In case of contact, it’s crucial to rinse the affected area with water and seek medical advice if symptoms persist. Additionally, DMSO is flammable at higher temperatures and should be stored away from strong heat sources and oxidising agents.

Please consult the safety data sheet before handling Dimethyl Sulfoxide.

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