99.98% Dimethyl Sulfoxide DMSO CAS 67-68-5 C₂H₆OS, for Pharmaceutical Synthesis, Electronic Cleaning, Chemical Solvents, and High-End Industrial Applications

1. Product Basic Information

Product Name: Dimethyl Sulfoxide

English Name: Dimethyl Sulfoxide

Abbreviation: DMSO

Purity: 99.98%

CAS No.: 67-68-5

Chemical Formula: C₂H₆OS

Product Category: High-Purity Organic Solvent, Fine Chemical Raw Material, Electronic Chemical Auxiliary Material

Dimethyl Sulfoxide is a highly polar aprotic organic solvent featuring excellent solvency, thermal stability, and chemical stability.

2. Product Quality Specifications (Based on Changzhou Jiayuan COA)

Testing Standard: GB/T21395-2008

Test Results:

Appearance: Colorless Transparent Liquid or Crystals

Odor: Slight Characteristic Odor

Assay (Main Content): 99.98% (Specification ≥99.90%)

Crystallization Point: 18.32°C (Specification ≥18.10°C)

Moisture Content: 248 ppm (Specification ≤1000 ppm)

Acid Value (as KOH): 0.01 mg/g (Specification ≤0.03 mg/g)

Light Transmittance (400 nm): 100.29% (Specification ≥96.00%)

Refractive Index (20°C): 1.4781

Specific Gravity: 1.103 (Specification ≥1.093)

3. Product Characteristics

① High Solvency

DMSO is capable of dissolving a wide range of organic compounds, inorganic substances, and polymeric materials, making it an important solvent in various industrial applications.

② High Purity and Low Impurities

This product offers a purity of 99.98% and a moisture content of 248 ppm, suitable for applications requiring high solvent purity.

③ Good Thermal Stability

Suitable for chemical reactions, high-temperature processes, and fine chemical production.

4. Main Application Areas in the Russian Market

① Pharmaceutical Intermediate Synthesis Solvent

Specific Application: Used as a reaction solvent, extraction solvent, and crystallization process auxiliary solvent in drug synthesis.

Downstream Customers: Pharmaceutical enterprises, pharmaceutical intermediate manufacturers.

② Electronics Industry Cleaning Agent and Process Solvent

Specific Application: Used for cleaning electronic components, semiconductor-related materials, and as a high-purity solvent in electronic chemical production processes.

Downstream Customers: Electronic materials companies, precision manufacturing enterprises.

③ Polymer Material Processing Solvent

Specific Application: Used in polymer dissolution, spinning processes, coating materials, and functional membrane material production.

Downstream Customers: Chemical materials companies, coatings and membrane material manufacturers.

④ Pesticide and Fine Chemical Production

Specific Application: Serves as a reaction medium in the synthesis of pesticide technical materials and fine chemicals, improving reaction efficiency and product purity.

Downstream Customers: Agrochemical enterprises, fine chemical companies.

⑤ Laboratory and Research Applications

Specific Application: Used as a highly polar solvent in organic synthesis, analytical testing, and research experiments.

5. Russian Market Procurement Considerations

Russian customers typically focus on the following:

① Purity Grade: High-end applications generally require high-purity DMSO of ≥99.9%.

② Moisture Control: Low moisture content contributes to stability in electronic, pharmaceutical, and other applications.

③ Acid Value Control: Affects chemical reactions and product stability.

④ Transparency and Impurity Control: Required for demanding industrial applications.

⑤ Completeness of COA, TDS, SDS, and Export Documentation.