DMSO Dimethyl Sulfoxide Liquid CAS 67-68-5 Information
| CAS |
67-68-5 |
| Molecular formula |
C2H6OS |
| Molecular weight |
78.13 |
| EIENCS |
200-664-3 |
| Form |
liquid (temperature dependent) |
| Melting point |
18.4 °C |
| boling point |
189 °C(lit.) |
| Density |
1.100 g/mL at 20 °C |
| Solubility |
H2O: miscible (completely) |
| PKA |
35(at 25℃) |
| Color |
Clear colorless to faint yellow |
| Storage temp |
|
What is DMSO Dimethyl Sulfoxide Liquid CAS 67-68-5?
Chemical Name: Dimethyl sulfoxide (Alternative name: Dimethyl sulfoxide)
Molecular formula: C₂H₆OS
Molecular weight: 78.13 g/mol
CAS Number: 67-68-5
EINECS number: 200-664-3
Appearance: Colorless and transparent liquid (may turn slightly yellow after long-term storage), with a slight bitter taste
Solubility: Miscible with water, ethanol, acetone, etc., insoluble in aliphatic hydrocarbons (except acetylene)
Level selection:
Industrial grade (99%) : Petroleum refining, coating solvents.
High purity grade (HPLC) : Pharmaceutical/electronic applications (Heavy metal test report required).
Alternative solution:
In the field of environmental protection, low-toxicity solvents (such as limonene) should be promoted to reduce the risk of halogen exposure.
Operation Warning:
In case of leakage, use sand to adsorb (water flushing is prohibited), and be equipped with an explosion-proof ventilation system.
DMSO Dimethyl Sulfoxide Liquid CAS 67-68-5 Use
Industrial solvents (main uses)
Petroleum refining: Aromatic hydrocarbon extraction (selectivity >98%), acetylene recovery (33 L/L solubility).
Synthetic fiber: Acrylic spinning solvent (improves dyeability, reduces cost by 30%).
Electronics industry: Integrated circuit cleaning agent (for removing organic/inorganic residues), liquid capacitor electrolyte (with a capacity of up to 100 farad).
Medicine and Biotechnology
Cryoprotectant: Used for the low-temperature preservation of stem cells and sperm (anti-freezing to -60℃).
Drug carriers: Enhance skin permeability (such as antifungal drugs, analgesics).
Anti-inflammatory and anti-tumor: Induce the differentiation of cancer cells and alleviate radiation damage.
Agriculture and Environmental Protection
Pesticide enhancers: Enhance the penetration of insecticides (such as for controlling fruit tree rot disease).
Gas separation: Recovery of sulfur dioxide/nitrogen oxides in chemical tail gas.
Emerging fields
New energy materials: solar energy storage capacitor dielectric, lithium-ion battery electrolyte additive.
Biodegradable plastics: Solvent for the synthesis reaction of polysulfone resins.
DMSO Dimethyl Sulfoxide Liquid CAS 67-68-5 safety
Health risk:
Irritation: Contact with skin/eyes can cause inflammation (R36/37/38), and inhalation of high-concentration vapor can cause respiratory tract damage.
Chronic toxicity: Long-term exposure may cause liver damage (Operation requires a gas mask and acid-resistant gloves).
Storage and transportation
Cool and well-ventilated (≤30℃), relative humidity <75%, and avoid light.
Incompatible substances: Strong oxidants, acyl chlorides (such as phosphorus trichloride, which can cause explosion).
Environmental protection compliance
Export requires REACH certification, and the pharmaceutical grade complies with FDA standards. The new national standard (GB/T 21395-2024) in 2024 increases the limit of heavy metals (Pb≤1 ppm).
