DMSO Anhydrous Grade Product Sheet


When Minimal Water Content is Critical

DMSO Anhydrous Grade is Dimethyl Sulfoxide (DMSO) with an extremely low moisture content that is produced under exacting manufacturing conditions to ensure dryness. This product eliminates the need for further solvent purification and processing.

Choose DMSO Anhydrous Grade for:

Water-Sensitive Compound Synthesis
Water present in DMSO can react with strong bases such as sodium hydride, butyllithium, and alkoxides. This can result in lower yields, and byproduct formation. DMSO Anhydrous Grade contains less than 50 ppm water, and minimizes losses to these side reactions.


Water Synthesis Analytical Applications
The potent solvent strength of DMSO makes it a valuable medium for the analysis and characterization of difficult-to-dissolve compounds and polymers. In certain analytical methods, water offers unwanted interference and can provide spurious information. This is especially true of IR Spectroscopy, wherein a small amount of water can obscure a large portion of the spectrum.


Compound Library Management
DMSO Anhydrous Grade may be used to store materials for later testing and its low water levels minimize degradation that may occur through association with water and hydrolysis.

Representation Spectification

Representative Test Methods Values

Assay, (% Min. by GLC)


Water (PPM Max. by GC)


Color, (Max. APHA)


Titrable Acid, (Max. meq /g)


Residue after Evaporation, (PPM Max.)


This illustration does not constitute the specification. Specifications are available upon request.

DMSO Anhydrous Grade at a Glance

Physical Properties Data

Density, at 25°C (77°F)


Boiling Point (atmos. pressure)


Viscosity @ 20°C (68°F)

2.14 cP

Refractive Index n20 D  @20°C (68°F)


Surface Tension @ 20°C (68°F)

 43 dynes/cm

Specific Heat @ 25°C (77°F)

 0.45 cal /g/ ̊C
Heat of Vaporization @ 25°C (77°F)  162 cal/g
Electrical Conductivity @ 20°C (68°F)  3 x 10-8/ohm/cm
Dielectric Constant @ 20°C (68°F)  48

Dipole Moment

4.3 D

Vapor Pressure @ 25°C (77°F)

 0.6 mm Hg


Soluble in water, light alcohols and diethyl either.


CAS: 67-68-5

EINECS: 200-664-3

HMIS and NFPA Hazard Ratings:  Health – 1, Flammability – 1, Chemical Reactivity – 0


Drums – 500-pound HDPE

The information in this bulletin is based on information available to us and on our observations and experiences. However, no warranty is expressed or implied regarding the accuracy of this data, the results to be obtained from the use thereof, or that any use will not infringe any patent. Each user must establish appropriate procedures for off-loading, handling, and use of the product(s). Since conditions for use are beyond our control, we will make no guarantee of results, and assume no liability for damages incurred by off-loading, handling, or use of the product(s). Nothing herein constitutes permission, or recommendation to practice any invention covered by any patent without license from the owner of the patent.