Description
Overview
Dimethyl sulfoxide (DMSO), ultra-pure grade at 99.99%. CAS: 67-68-5. Molar mass: 78.13 g/mol. Form: clear, colorless to pale yellow liquid. Melting point: 18.5°C. Boiling point: 189°C. Density: 1.10 g/mL. Soluble in water and most organic solvents. Purity confirmed by GC analysis. Packaged in 100ml amber glass bottle with PTFE-lined cap to prevent contamination. Used as polar aprotic solvent in chemical and biological research. Not for medical or internal use.
Applications
Used as solvent in polymer synthesis. Ideal for recrystallization of organic compounds. Applied in cell culture as cryoprotectant. Suitable for membrane permeation studies. Employed in NMR spectroscopy as deuterated solvent base. Used in drug solubility testing. Functions in electronics manufacturing for cleaning. Common in photoresist stripping in microfabrication.
Specifications
Water content: ≤10 ppm. Residue on ignition: ≤0.001%. UV absorbance at 260 nm: ≤0.1. Stable under inert atmosphere. Store under nitrogen if long-term. Avoid exposure to strong acids, halogens, and oxidizers. Keep away from light and heat.
Safety
GHS02 (Flammable), GHS07 (Health Hazard). H225: Highly flammable. H315: Causes skin irritation. H319: Causes eye irritation. Use in well-ventilated area. Wear gloves, goggles, and lab coat. P303+P361+P353: Remove contaminated clothing, rinse skin. Keep away from ignition sources.
FAQ
Why amber bottle?
To protect from light-induced decomposition and oxidation.
Can it penetrate skin?
Yes, it carries dissolved substances through membranes—handle with care.
Is it hygroscopic?
Yes, absorbs moisture from air—keep container sealed.
How to store properly?
Cool, dry place, under inert gas if possible, away from oxidizers.
Can it be used in reactions?
Yes, common in Swern oxidations and other organic syntheses.
References
PubChem: DMSO, Wikipedia: DMSO, ECHA, SDS available at EN.com
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