Dimethyl sulfoxide (DMSO, CAS 67-68-5) is a remarkable polar aprotic solvent — colourless, highly versatile and able to dissolve both polar and non-polar compounds. This guide covers what DMSO is used for, its grades, and how to handle it safely.
What makes DMSO special
DMSO is a polar aprotic solvent that is miscible with water and most organic solvents. It dissolves an exceptionally wide range of substances, has a high boiling point, and readily penetrates skin — which is why careful handling matters.
Common uses of DMSO
- Reaction solvent — a favourite for organic synthesis, especially substitution and oxidation reactions.
- Cryoprotectant — protects cells during freezing in biology and pharmaceutical research.
- Pharmaceutical & industrial processing — as a process solvent and carrier.
- Analytical chemistry — a common NMR/spectroscopy solvent (as deuterated DMSO).
Grades and purity
DMSO is available in technical, ACS/reagent and pharmaceutical grades. Match the grade to your application — analytical and pharma work needs high purity. See our guide to chemical purity grades, and request a COA for documented specifications.
Safe handling
Because DMSO penetrates skin and can carry dissolved substances with it, always wear suitable gloves and avoid contact. Store cool and dry in closed containers. An SDS is provided on request.
Buy DMSO from Ozon Chemical
Ozon Chemical supplies dimethyl sulfoxide (DMSO) and a full range of solvents as an EU-registered, REACH-compliant supplier, with COA/SDS on request and worldwide shipping. See also choosing the right solvent.
