Dimethyl Sulfoxide (DMSO)
CAS Number: 67-68-5
Dimethyl sulfoxide (DMSO, ≥99.9%) is an exceptionally versatile polar aprotic solvent with unique skin-penetrating ability, high thermal stability, and complete water miscibility. It is widely used in pharmaceutical formulations as a topical drug carrier, in cryobiology for cell preservation, as a reaction solvent for SNAr and cross-coupling reactions, and in agrochemical formulations.
Technical Specifications
| appearance | Colorless clear liquid or solid (mp ~18.5°C) |
| purity (%) | ≥99.9 |
| water content (%) | ≤0.03 |
| boiling point (°C) | 189.0 |
| density (g/mL, 20°C) | 1.099–1.102 |
Applications
- Pharmaceutical topical drug delivery carrier and penetration enhancer
- Cryoprotective agent for cell, tissue, and stem cell preservation
- Reaction solvent for SNAr, coupling, and organometallic reactions
- Agrochemical formulation solvent and penetrant enhancer
- HPLC mobile phase and analytical reference solvent
Key Features
- Pharmaceutical-grade ≥99.9% with low peroxide content meeting USP/EP requirements
- Unique skin-penetrating ability enabling transdermal drug delivery applications
- Complete miscibility with both water and organic solvents for universal formulation use
- High thermal stability (bp 189°C) enabling high-temperature synthesis without decomposition
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CAS Number
67-68-5
Category
Industrial Solvents / ChemicalsAvailability
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