دی متیل سولفوکسید UV
| Formula | C2H6OS |
| Chemical formula | (CH3)2SO |
| Density | 1.10 g/cm3 (20°C) |
| Molar mass | 78.13 g/mol |
| CAS number | 67-68-5 |
| HS Code | 29309070 |
| EC number | 200-664-3 |
| Storage | Without limitation |
| SDS | available |
| Odour | characteristic |
| Form | liquid |
| Color | colourless |
| Explosion limit | 1.8 – 63.0 Vol % |
| Ignition temprature | 300-302 °C |
| Solubility in water | 1000g/l (20°C) |
| Solubility in ethanol | soluble |
| Solubility in chloroform | soluble |
| Flash point | 95 °C |
| Boiling point | 189 °C |
| Melting point | 18.5°C |
| Vapour pressure | 0.6 hPa |
| Viscosity dynamical | 2.14 mPa*s |
| Saturation concentration | 8 g/m3 |
Dimethyl Sulfoxide (DMSO) for UV is a high-purity, low-absorbance solvent refined for ultraviolet (UV) and spectrophotometric applications in pharmaceutical and analytical laboratories, providing a clear medium for accurate optical measurements.
🏭⚗️ Production
DMSO for UV is purified to remove water, peroxides, and UV-absorbing impurities, then packaged under inert, moisture-controlled conditions to maintain chemical stability and optical clarity.
🔬 Properties
DMSO is a clear, colorless, hygroscopic liquid with a slightly sulfurous odor. It is highly polar, miscible with water and many organic solvents, has a boiling point of ~189 °C, and exhibits minimal UV absorbance above 265 nm, making it suitable for UV–Vis spectroscopy of polar and non-polar compounds.
🧪 Applications
Used as a solvent for preparation of calibration standards, reference solutions, and assay samples, DMSO dissolves a wide range of pharmaceutical compounds and excipients. It is suitable for UV–Vis measurements, solubility studies, and analytical method development requiring high optical purity.
⚠️ Safety
DMSO can facilitate skin absorption of dissolved substances and may cause irritation. It should be handled in a well-ventilated area or fume hood, with gloves, goggles, and protective clothing. Containers must be tightly sealed and stored in a cool, dry place, and waste should be disposed of according to laboratory safety protocols.


