Dimethyl Sulfoxide is a polar aprotic chemical compound, organosulfur compound, and industrial solvent used in controlled chemical processing systems. Identified by CAS 67-68-5, its sulfoxide functional group provides high polarity and strong solvating ability for a wide range of organic and inorganic substances. In industrial manufacturing environments, it is commonly applied in organic synthesis and formulation processes, where effective solvation and chemical stability are required under defined conditions. The material is supplied with competitive factory pricing, supports customized specifications, and is provided with complete MSDS, TDS, COA documentation for bulk supply.
Dimethyl Sulfoxide CAS 67-68-5
- CAS: 67-68-5
- Synonyms: Dimethyl sulfoxide, DMSO, Methyl sulfoxide, Dimethyl sulphoxide
- Einecs: 200-664-3
- Molecular Formula: C2H6OS
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Product Name:Dimethyl sulfoxide
Chemical formula:C2H6OS
Appearance:Colorless transparent liquid
Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound with the molecular formula C2H6OS, which is a colorless and odorless transparent liquid at room temperature, and is a hygroscopic and combustible liquid. It has the characteristics of high polarity, high boiling point, good thermal stability, non-proton, and miscible with water, and can be soluble in most organic substances such as ethanol, propanol, and benzene. DMSO is a dimethyl sulfoxide with a wide range of uses. It is used as a solvent for acetylene, aromatics, sulfur dioxide and other gases, as well as as a spinning solvent for acrylic fibers. It is an extremely important non-proton polar solvent that is soluble in water and organic solvents. It has strong penetration to the skin and helps the drug penetrate into the human body. It can also be used as an additive to pesticides. It is also a very important chemical reagent.
Molecular weight: 78.13
CAS Accession Number: 67-68-5
EINECS accession number: 200-664-3
Melting point: 18.4 °C
Water soluble: soluble
Appearance: colorless liquid
Flash point: 95 °C
Application: Organic polymer synthesis stabilized solvent; Dimethyl sulfoxide is widely used as a solvent and reaction reagent, especially as a processing solvent and a drawing solvent in acrylonitrile polymerization reactions, as a solvent for polyurethane synthesis and filing, as a synthesis solvent for polyamides, polyimides and polysulfone resins, as well as aromatics, butadiene extraction solvents and solvents for the synthesis of chlorofluoroaniline.
FAQ - Technical & Supply Chain
-
Q:
Are dimethyl sulfoxide and DMSO the same substance?
A: Yes. Dimethyl sulfoxide and DMSO refer to the same chemical compound using different naming conventions and correspond to the same CAS‑registered substance. -
Q:
Is dimethyl sulfoxide used in industrial processes rather than only for laboratory research?
A: Dimethyl sulfoxide is widely used as an industrial solvent and processing aid in controlled manufacturing and synthesis systems.
Documents
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Quotation
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Storage & Handling
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Supply Support
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
