Dimethyl sulfoxide 67-68-5
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Dimethyl sulfoxide 67-68-5
- Chemical Name:Dimethyl sulfoxide 67-68-5
- CAS No.:67-68-5
- Product Categories:Organic Chemistry
- Molecular Formula:C2H6OS
- Formula Weight:78.13
- Appearance:Colorless transparent liquid
- Storage and transportation characteristics: low temperature, ventilation, dryness, waterproof, moisture-proof
- Type Of Transportation:By Air/By Sea/By Train/By Express
- Type Of Transportation:Available
- Chemical Name:Dimethyl sulfoxide 67-68-5
- CAS No.:67-68-5
- Product Categories:Organic Chemistry
- Molecular Formula:C2H6OS
- Formula Weight:78.13
- Appearance:Colorless transparent liquid
- Storage and transportation characteristics: low temperature, ventilation, dryness, waterproof, moisture-proof
- Type Of Transportation:By Air/By Sea/By Train/By Express
- Type Of Transportation:Available
Dimethyl sulfoxide 67-68-5
Dimethyl sulfoxide (DMSO) is a sulfur-containing organic compound with the English name Dimethyl sulfoxide and the molecular formula (CH₃)₂SO.
At room temperature, it is a colorless, odorless, transparent liquid with hygroscopic and flammable properties. It exhibits high polarity, a high boiling point, non-protonic characteristics, and is miscible with water.
It has extremely low toxicity, It has good thermal stability and does not mix with alkanes. It is soluble in water, ethanol, propanol, ether, benzene, and chloroform, among most organic compounds, earning it the reputation as the “universal solvent.”
It is the most potent solvent among commonly used organic solvents. It can dissolve most organic compounds, including carbohydrates, polymers, peptides, and many inorganic salts and gases.
It can dissolve solutes equivalent to 50-60% of its own weight (other general solvents can only dissolve 10-20%), making it crucial in sample management and high-throughput drug screening. Under certain conditions, when dimethyl sulfoxide comes into contact with acyl chlorides, an explosive reaction may occur.
Chemical Properties of Dimethyl sulfoxide 67-68-5
| Melting point | 18.4°C |
| Boiling point | 189 °C (literature value) |
| Density | 1.100 g/mL (20°C) |
| Vapor density | 2.7 (relative to air) |
| Vapor pressure | 0.42 mm Hg (20 °C) |
| Refractive index | n20/D 1.479 (literature value) |
| FEMA | 3875 | Methylsulfonylmethane |
| Flash point | 192°F |
| Storage conditions | Store at +5°C to +30°C. |
| Solubility | Completely miscible with water |
| Acidity coefficient (pKa) | 35 (at 25°C) |
| Form | Liquid (depending on temperature) |
| Color | Transparent colorless |
| Relative polarity | 0.444 |
| Odor | Mild garlic odor |
| Fragrance type | Allium genus |
| Biological source | Synthetic |
| Explosion limits | 1.8–63.0% (by volume) |
| Water solubility | Soluble in water, methanol, acetone, ether, benzene, chloroform. |
| Freezing point | 18.4°C |
| Sensitivity | Hygroroscopic |
| Maximum wavelength | λ: 285 nm Amax: s0.20 λ: 295 nm Amax: s0.20 |
| JECFA Number | 507 |
| Merck | 143,259 |
| BRN | 506008 |
| Dielectric constant | 41.9 (55°℃) |
| Stability | Stable. Incompatible with most materials, including acyl chlorides, strong acids, strong oxidizing agents, strong reducing agents, halogenated phosphates, moisture, copper wire + trichloroacetic acid. May react violently with many materials—please consult the complete MSDS before use. Hygroscopic. |
| InChlKey | IAZDPXIOMUYVGZ-UHFFFAOYSA-N |
| LogP | -1.35 |
| Surface tension | 42.179mN/m at 298.15K |
| CAS database | 67-68-5(CAS DataBase Reference) |
| NIST chemical information | Dimethyl sulfoxide(67-68-5) |
| EPA chemical information | Dimethyl sulfoxide (67-68-5) |
| Absorption | passes test |
Application of Dimethyl sulfoxide 67-68-5
Used as an analytical reagent and gas chromatography stationary phase, it is also used as a solvent in ultraviolet spectroscopy analysis, as well as a reaction medium for aromatic hydrocarbon extraction, resins, and dyes, a solvent for nylon polymerization, and a solvent for filament extraction.
It can be used as an organic solvent, reaction medium, and organic synthesis intermediate. It has a wide range of applications. This product has a high selective extraction capacity and is used as a polymerization and condensation solvent for acrylic resins and poly sulfone resins, a polymerization and spinning solvent for polyacrylonitrile and acetate fibers, an extraction solvent for separating alkanes and aromatics, and an extraction solvent for aromatics and butadiene.
nylon spinning, plastic solvent, and as a reaction medium in the production of organic synthetic dyes and pharmaceuticals. In the pharmaceutical field, dimethyl sulfoxide has anti-inflammatory and analgesic effects and strong skin penetration, enabling it to dissolve certain drugs and facilitate their penetration into the human body for therapeutic purposes.
Utilizing this carrier property, dimethyl sulfoxide can also be used as an additive in pesticides. Adding a small amount of dimethyl sulfoxide to certain pesticides helps them penetrate into plants, thereby enhancing their efficacy.
Dimethyl sulfoxide can also serve as a dyeing solvent, decolorizing agent, and dyeing carrier for synthetic fibers, as well as an absorbent for recovering acetylene and sulfur dioxide, a modifier for synthetic fibers, an antifreeze agent, and a dielectric medium, brake fluid, and extractant for rare metals.
Packaging Method of Dimethyl sulfoxide 67-68-5
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