CAS 67-68-5 Dimethyl Sulfoxide/Dimethylsulfoxide DMSO
Products Description
Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound, the molecular formula is C2H6OS, at room temperature is colorless odorless transparent liquid, is a hygrometric flammable liquid. With high polarity, high boiling point, good thermal stability, aprotic, and water miscible characteristics, can dissolve in ethanol, propanol, benzene and chloroform and other most organic matter, known as "universal solvent". In the presence of acid, heating will produce a small amount of methyl mercaptan, formaldehyde, dimethyl sulfur, mesylate and other compounds. Decomposition phenomenon at high temperatures, chlorine can occur violent reaction, burning in the air issued a light blue flame. It can be used as organic solvent, reaction medium and intermediate of organic synthesis.
BASIC ANALYSIS
| Item of Analysis | Specification | Results |
| DMSO CONTENT % | ≥ 99.5 | 99.90 |
| Organoleptic | ||
| Appearance | Liquid | Conform |
| Color | Colorless liquid or colorless crystals, hygroscopic, miscible with water and with alcohol. | Conform |
| Odor | Characteristic | Conform |
| Physical Characteristics | ||
| Relative density | 1.100-1.104 | 1.104 |
| Relative index | 1.478-1.479 | 1.4786 |
| Related substances% | ≤ 0.1 | 0.05 |
| CRYSTALIAING POINT | ≤ 18.3° C | 18.3 |
| ACID VALUE (KOH)/g | ≤ 0.01 | 0.01 |
| REFEACTIVE INDEX (20° C) | 1.4775~1.4790 | 1.4780 |
| Heavy metals | ||
| Total Heavy Metals | 20ppm Max | Conform |
| Lead (Pb) | 3ppm NMT | Conform |
| Arsenic (As) | 2ppm NMT | Conform |
| Cadmium (Cd) | 1ppm NMT | Conform |
| Mercury (Hg) | 0.1ppm NMT | Conform |
| Microbiological Tests | ||
| Total Bacteria Count | 1000cfu/g Max | Conform |
| Yeast & Mold | 100cfu/g Max | Conform |
| E. Coli. | Negative | Conform |
| Salmonella | Negative | Conform |
| Staphylococcus | Negative | Conform |
Applications
- Solvent: DMSO is widely used as a solvent in chemical reactions, particularly in organic synthesis, due to its ability to dissolve both polar and nonpolar compounds.
- Pharmaceuticals: It is used as a vehicle for drug delivery, enhancing the absorption of certain medications through the skin. DMSO can facilitate the transdermal delivery of drugs.
- Anti-inflammatory Agent: DMSO has anti-inflammatory properties and is sometimes used in topical formulations for conditions like arthritis and muscle pain.
- Cryopreservation: In biological research, DMSO is used as a cryoprotectant to preserve cells, tissues, and organs at low temperatures.
- Laboratory Applications: DMSO is commonly used in laboratories for various applications, including as a solvent for biochemical assays and in cell culture.
- Industrial Applications: It is used in the production of plastics, fibers, and other materials, as well as in the formulation of paints and coatings.
