Dimethyl Sulfoxide (DMSO, C₂H₆OS, CAS 67-68-5) is a clear, colorless polar aprotic solvent. It mixes completely with water and most organic solvents and dissolves a wide range of organic and inorganic compounds. Its high boiling point (189 °C) and low toxicity make it a common reaction and process solvent in pharmaceutical and agrochemical synthesis, a spinning solvent for acrylic fibers, and a photoresist stripper and cleaning solvent in electronics manufacturing. Industrial grades are typically 99.9% minimum purity. DMSO freezes at about 18.5 °C, so drums can solidify in cold weather and need gentle warming before use.
| Property | Specification |
|---|---|
| Product Name | Dimethyl Sulfoxide (DMSO) |
| CAS No | 67-68-5 |
| Chemical Name/Synonyms | DMSO; Methyl Sulfoxide; Methylsulfinylmethane; Sulfinylbis(methane) |
| Chemical Formula | C₂H₆OS |
| Appearance (Color) | Clear, colorless, nearly odorless liquid; solidifies below about 18 °C |
| Molecular Weight | 78.13 g/mol |
| HS Code | 2930.90 |
| TSCA Inventory | Active |
More identifiers
| |
| Property | Typical Classification |
|---|---|
| GHS Signal Word | Warning |
| GHS Pictograms | None required (combustible liquid, OSHA Flammable Liquid Category 4) |
| UN Number | Not regulated as dangerous goods |
| Flash Point | 87–89 °C (closed cup) |
Typical U.S. classification for this product: label elements under OSHA’s Hazard Communication Standard (29 CFR 1910.1200) and transport under U.S. DOT (49 CFR 172.101), compiled from manufacturers’ safety data sheets and harmonised GHS classifications, checked October 2026. Environmental hazards are shown for information; the OSHA label does not cover them. Classification can differ by supplier, grade and concentration: the supplier’s U.S.-format SDS, sent with your quote, is the governing document.
Reaction and crystallization solvent for active ingredients and intermediates.
Solvent for pesticide and herbicide intermediates and formulations.
Dissolves polyacrylonitrile for the wet spinning of acrylic fibers.
Strips photoresist and removes residues in semiconductor and display manufacturing.
Base solvent in paint strippers, as an alternative to methylene chloride.
Extraction and reaction solvent where high solvency and low volatility are needed.
We find the right Indian manufacturer for your grade, quantity and target price. Around that, use the services you need:
Before we recommend a manufacturer, we check it in five layers: its documents (COA, SDS, certifications), its business license and IEC status with India’s DGFT, its standing with our industry contacts, an in-person visit to the facility, and its export record.
Want proof that the batch matches its COA before it ships? We collect samples at the factory or port and coordinate testing for purity, grade and contaminants at accredited third-party laboratories. Lab fees are passed through at cost.
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Our American-led team in India can be at a supplier’s site, check its machinery and real capacity, sit in on negotiations and review documents in person, then report back to you directly, with photos and video from the factory floor.
Going the other way? If you make a specialty chemical or industrial product and want to sell it in India, we provide the on-ground presence and industry network to open that market.
Boric acid (H₃BO₃) is a versatile antiseptic, buffering, and flame-retardant chemical used in industry and manufacturing.
Formaldehyde (CH₂O) is a broad-spectrum bactericide and disinfectant for industrial and water treatment use.
Benzyl chloride (C₇H₇Cl) is a reactive intermediate used in pharmaceuticals, agrochemicals, dyes, and fragrances.
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Flexible packaging options as per requirement.
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