Dimethyl Sulfoxide
Product Name: Dimethyl sulfoxide(DMSO)
Appearance: Colorless to pale yellow liquid
Grade: Reagent Grade/Pharmaceutical Grade/Industrial Grade (varies by application)
CAS Number: 67-68-5
EINECS Number: 200-664-3
Chemical Formula: C₂H₆OS
HS Code: 2930.90.90
Package: 225kg/drum
1. Product Introduction
Dimethyl sulfoxide (DMSO) is a highly versatile polar aprotic solvent with exceptional solubility properties. It is a colorless to pale yellow liquid, widely recognized for its ability to penetrate biological membranes and dissolve a broad range of organic and inorganic compounds. DMSO is synthesized through the oxidation of dimethyl sulfide and is valued across industries for its unique chemical and physical characteristics.
Content | Specification | Result |
Dimethyl sulfoxide content wt%≥ | 99.9 | 99.9664 |
Impurity,% ≤ | 0.10 | 0.0111 |
Gas chromatography,℃ ≥ | 18.10 | 18.40 |
Acid number (K0H),mg/g≤ | 0.03 | 0.01 |
Luminosity(400m),% ≥ | 96.0 | 100.10 |
The weight fraction of water% ≤ | 0.10 | 0.013 |
Desity (25℃),g/cm3 | 1.1±0.1 | 1.100 |
PH | 6-8 | 7 |

2. Product Features
High Solubility: Dissolves polar and nonpolar substances, including polymers, resins, and APIs (Active Pharmaceutical Ingredients). Low Toxicity: Safe for use in pharmaceutical and biomedical applications. Cryoprotectant: Protects cells and tissues during freezing processes. Penetration Enhancer: Facilitates transdermal drug delivery by enhancing skin permeability. Thermal Stability: Stable under a wide temperature range (-50°C to 189°C). High Purity: Available in reagent, pharmaceutical, and industrial grades (≥99.9% purity for critical applications).
3. Applications
Pharmaceuticals: Solvent for drug formulations, cryopreservation, and anti-inflammatory therapies.
Chemical Synthesis: Reaction medium for organic synthesis, polymerization, and crystallization.
Electronics: Used in photoresist stripping and semiconductor cleaning.
Agriculture: Carrier for pesticides and herbicides.
Biotechnology: Cell culture preservation and protein stabilization.
Industrial: Paint stripper, antifreeze additive, and fiber processing aid.

