Dimethyl Sulfoxide

CAS NO. 67-68-5

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Product Description

Product Name	Dimethyl Sulfoxide (DMSO) (Synonyms: Methyl Sulfoxide; DMSO Solvent)
CAS NO.	67-68-5
Formula & Weight	C2H6OS (MW: 78.13)
Chemical Structure
Technical Specifications	Appearance: Clear, colorless liquid (Hygroscopic) Assay (GC): ≥ 99.9% (High Purity) Water Content: ≤ 0.03% (Low Moisture) Crystallization Point: ≥ 18.1°C Acid Value: ≤ 0.04 mg KOH/g Refractive Index (20°C): 1.478 - 1.479
Key Applications	Versatile "Universal Solvent" for various industries: Reaction Solvent: Excellent polar aprotic medium for SN2 reactions, pharmaceutical synthesis, and agrochemical formulation. Electronics & Batteries: Used as a high-purity electrolyte solvent in Lithium batteries and as a stripper for photoresists. Industrial Processing: Highly effective paint stripper, graffiti remover, and cleaner for polymer processing equipment. Polymer Industry: Solvent for spinning polyacrylonitrile (PAN) fibers and processing sulfone polymers.
Logistics & Packaging	Transport: NA 1993 / Combustible Liquid (Non-Haz for Sea/Air in small qty usually). Packaging: Plastic Drum / IBC Tank. Storage: Keep above 20°C to prevent freezing. Store in strict dry conditions.

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