What is the difference between industrial and USP DMSO?

It is the same molecule; USP/EP grade certifies water, assay and heavy-metals limits for medical and cryopreservation use.

My drum solidified — is it spoiled?

No. DMSO freezes at 18.5 °C. Warm it gently to re-liquefy; there is no loss of quality.

How should it be handled?

Keep sealed (it is hygroscopic), select gloves appropriate for a skin-penetrating solvent, and keep away from acid chlorides and strong oxidisers.

Dimethyl Sulfoxide (DMSO)

CAS 67-68-5 C₂H₆OS

CAS number: 67-68-5
EC number: 200-664-3
Formula: C₂H₆OS
Molar mass: 78.13 g/mol
Appearance: Clear colourless liquid, faint garlic note; freezes ~18.5 °C; hygroscopic.
HS code: 2930.90

DMSO is a highly polar aprotic solvent that dissolves an unusually wide range of compounds and penetrates skin — used from organic synthesis to cryopreservation and electronics. Ehlinar sources industrial through pharmacopoeial grades.

Applications

Chemical synthesisPolar aprotic reaction solvent (SN2, Finkelstein)

Pharma & biotechPenetration enhancer, topical vehicle and cell cryopreservation

Life sciencePCR and molecular-biology solvent

ElectronicsPaint/photoresist stripping and TFT-LCD processing

AgrochemicalsFormulation solvent

Grades & packaging

Technical/industrial ≥99.7%, ACS reagent, pharmacopeial USP/EP, and spectroscopy/electronic grades ≥99.9%.

250 kg steel/HDPE drums
IBC (~1200 kg)
ISO tanks
Bulk (heated in cold climates)

Also known as

Methylsulfinylmethane · Methyl sulfoxide · DMSO · Demasorb · Domoso

Frequently asked questions

What is the difference between industrial and USP DMSO?: It is the same molecule; USP/EP grade certifies water, assay and heavy-metals limits for medical and cryopreservation use.
My drum solidified — is it spoiled?: No. DMSO freezes at 18.5 °C. Warm it gently to re-liquefy; there is no loss of quality.
How should it be handled?: Keep sealed (it is hygroscopic), select gloves appropriate for a skin-penetrating solvent, and keep away from acid chlorides and strong oxidisers.

Enquire about Dimethyl Sulfoxide

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Figures and identifiers here are compiled from public references and provided for general information; they are indicative, not a specification. See all products.