Dimethyl Sulfoxide Ph. Eur. / USP - DMSO - 99.9%
DMSO ≥ 99.9% pharmaceutical grade Ph. Eur. / USP, packaged in an airtight container. Laboratory-tested for professional applications requiring a highly pure, stable, and controlled solvent.
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HIGHLIGHTS
Certified Purity ≥ 99.9%
Strict control of water, impurities, and residues.
Secure pharmaceutical packaging
UV-resistant glass bottle, leak-proof cap + 30 mL measuring cup included.
Ph. Eur. / USP Quality
Compliant with European and American Pharmacopoeias.
REACH Traceability
Up-to-date SDS, complete regulatory registration.
What is DMSO used for?
Dimethyl sulfoxide (DMSO) is an organic compound that has been used for several decades in the health and scientific research fields. It is recognized for its unique ability to quickly penetrate the skin, making it a particularly studied transdermal penetration vehicle.
Scientific research focuses notably on its analgesic, anti-inflammatory, and antioxidant properties.
Warning: exothermic dilution
Diluting DMSO in water is a natural chemical reaction that releases heat. The temperature of the mixture can increase significantly, particularly during 50-70% dilutions. This phenomenon is normal.
Recommendations:
- Always pour the DMSO into the water, never the other way around
- Use a heat-resistant glass container
- Dilute gradually, in small quantities
- Allow the mixture to cool before handling or application
- Avoid any skin contact with the solution while it is hot
- Keep tightly closed, in its original container.
- Store at a temperature between 15 °C and 25 °C.
- Protect from humidity, air, and light.
- Keep away from heat sources and incompatible substances.
⚠️ DMSO may solidify below approximately 18 °C (this is normal).
To liquefy it, allow it to return to room temperature (>20 °C) or use a gentle bain-marie (max. 40 °C).
DMSO naturally solidifies around 18–18.5 °C: this is a completely normal phenomenon, linked to its high purity.
However, it can remain liquid below this temperature due to supercooling, a physical state where a liquid does not crystallize even below its solidification point, as long as no element triggers crystallization. The purer the DMSO, the more likely this phenomenon is: impurities act as "seeds" for crystallization, and their absence delays the process.
Other factors favor supercooling:
- A smooth glass bottle, which offers few anchor points for crystals
- An absence of agitation, shock, or sudden temperature variation
A slight shock to the bottle, a vibration, or a rapid change in temperature can be enough to trigger almost instantaneous crystallization, even if the DMSO had remained liquid for several hours below 18 °C.
If your DMSO crystallizes, simply reheat it gently in a warm water bath, without exceeding 40 °C, until it becomes liquid again. Its quality is in no way altered.
Dioxypure® DMSO is selected according to high quality standards and complies with the specifications of Ph. Eur. (European Pharmacopoeia) and USP (United States Pharmacopeia) pharmacopoeias.
The product's analytical specifications notably include:
- Purity (Assay): ≥ 99.9%
- Total related substances: ≤ 0.1%
- Water content (Karl Fischer): ≤ 0.1%
- Residue on evaporation: ≤ 0.01%
- Solidification point: ≥ 18.3 °C
- Density at 20 °C: 1.100 – 1.104
- Refractive index at 20 °C: 1.478 – 1.480
These parameters ensure consistent quality, high chemical purity, and excellent product stability.
The product is manufactured according to rigorous quality standards and complies with the pharmaceutical specifications mentioned.
Consult the complete specifications sheet
Consult the COA – certificate of analysis
Dimethyl Sulfoxide (DMSO) ≥ 99.9% is a high-purity organosulfur solvent, compliant with the requirements of the European Pharmacopoeia (Ph. Eur.) and the United States Pharmacopeia (USP). It comes as a clear, colorless liquid with a characteristic faint odor, whose purity is rigorously controlled to ensure optimal stability, consistent quality, and reliable reproducibility from batch to batch.
The formulation is free from any additives, stabilizers, or preservatives. The product is composed exclusively of dimethyl sulfoxide, guaranteeing total transparency regarding composition and a high level of purity, in accordance with international pharmaceutical standards.
Thanks to its specific physicochemical properties, DMSO is used in various professional, technical, and laboratory contexts requiring a highly pure, stable, and rigorously controlled solvent.
Common uses (in compliance with regulations):
Laboratories and research: Used as a reference solvent for analytical tests, physicochemical tests, experimental protocols, and research work.
Technical and industrial applications: Experimental processes, technical formulations, quality controls, and developments in a professional environment.
Educational and demonstrative uses: Observation of physicochemical properties of solvents, demonstrations in educational or technical settings.
Uses must strictly comply with local regulations in force, safety data sheets (SDS), and good practices for handling chemical products.
Secure pharmaceutical packaging
As with our Methylene Blue and CDS solutions, Dioxypure® DMSO is packaged in an airtight pharmaceutical container, designed to protect the product from air, moisture, and external contamination.
This packaging helps to preserve the stability of the product, ensure optimal long-term storage, and maintain the quality of DMSO until use.
DMSO can solidify below approximately 18 °C, a normal and reversible phenomenon that does not alter the quality of the product. It can be returned to liquid phase by returning to room temperature or using a gentle water bath (max. 40 °C).
Do not use a microwave.
Compliance and regulation
Product complies with current European regulations:
✔️ REACH registered substance
✔️ Compliant with CLP regulation (substance not classified as hazardous according to Regulation (EC) No 1272/2008)
✔️ Ph. Eur. / USP compliant
✔️ Strict analytical specifications
✔️ Controlled water content (≤ 0.1%)
✔️ Total impurities ≤ 0.1%
✔️ Safety Data Sheets (SDS) available
CLP classification depends on the product's specific safety data sheet and its regulatory assessment.
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FAQ – Dimethyl Sulfoxide (DMSO)
What is DMSO?
What is DMSO?
DMSO (dimethyl sulfoxide) is an organic solvent primarily used in laboratories, research, and certain technical applications. It is valued for its ability to dissolve many compounds and for its complete miscibility with water.
Why choose DMSO ≥ 99.9%?
Why choose DMSO ≥ 99.9%?
High-purity DMSO guarantees better stability, limits the presence of impurities, and provides more reliable results in technical or analytical applications. Purity is an essential criterion for ensuring the reproducibility and quality of protocols.
