Dimethyl sulfoxide is a colorless liquid and an important polar aprotic solvent. It is miscible with many organic solvents and water.CAS 67-68-5 EC 200-664-3| Chemical Reagents net

It is a widely used organic solvent, mainly used in drug research, biochemistry and chemical production. It has good solubility and permeability and is suitable for dissolving different types of compounds, but it needs to pay attention to safety and environmental protection when using and handling.

General Information

Compound Name: Dimethyl Sulfoxide
CAS Number: 67-68-5
Molecular Weight: 78.13 g/mol
Molecular Formula: C2H6SO
MDL Number: MFCD00002089
EC Number: 200-664-3
Grade: AR (Analytical Reagent)
Packaging: 500ml × 20 bottles/case
Brand: Keshi

Physical Properties:

Appearance: Colorless liquid
Density: 1.10 g/cm³
Melting Point: 18.5 °C
Boiling Point: 189 °C
Refractive Index: 1.479

Chemical Properties:

DMSO is a highly polar solvent capable of dissolving a wide range of organic and inorganic compounds.
It is highly soluble in water.
Stable at room temperature and non-flammable.

Structural Formula

     H
     |
H-C-C-S=O
     |
     H

Quality inspection report

| Product Name         | Dimethyl Sulfoxide        |
| Specification        | Analytical grade          |
| Batch Number         | 2023122201               |
| Molecular Formula    | C2H6OS                   |
| Molecular Weight     | 78.13                    |
| Batch Quantity       | 4400 kg                  |
| Inspection Unit      | Production Department    |
| Sample Category      | Organic                  |
| Report Date          | 2023.12.24               |
| Inspection Standard  | HG/T 5345-2018           |
|                     |                          |
| Test Item            | Standard Requirement     | Actual Measurement |
|----------------------|--------------------------|-------------------|
| Content, %           | ≥99.5                    | 99.9              |
| Appearance           | Colorless transparent liquid | Colorless transparent liquid |
| Color (Hazen units)  | ≤10                      | <10               |
| Density (20℃), g/mL  | 1.099-1.102              | 1.100             |
| Refractive index n20/D | 1.477-1.480            | 1.479             |
| Melting point (℃)    | ≥18.0                    | 18.2              |
| Residue on evaporation, % | ≤0.01               | 0.006             |
| Moisture, %          | ≤0.1                     | 0.01              |
| Acidity (as H+), mmol/g | ≤0.001                | 0.0001            |
| Analysis Conclusion  | Meets HG/T 5345-2018 requirements for analytical grade |

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