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Gaylord Chemical Company,
L.L.C. (GCC) is the world's
leading provider of Dimethyl
Sulfoxide (DMSO) solutions.
Beginning in the early
1960's ,GCC has been
dedicated to the development of
new uses for DMSO. In order to
meet customer-specific needs,
GCC has pioneered the devel-
opment of multiple grades of
DMSO, including DMSO USP.

Gaylord Chemical's solutions-
based approach has contributed
to the development and growth
of industries including
pharmaceuticals, hydrocarbons,
electronics, polymers, coatings,
agricultural chemicals, and
industrial cleaners.

Gaylord Chemical's
headquarters are located in
Slidell, Louisiana with
manufacturing, research, and
development facilities in nearby
Bogalusa, Louisiana. GCC
remains the only producer of
DMSO in the Western
Hemisphere.
Octr 2007
Dimethyl Sulfone (DMSO2)
Physical Properties
Introduction
Dimethyl sulfone has several common names: DMSO2, MSM,
methylsulfonylmethane and methyl sulfone.
Dimethyl sulfone (DMSO2) has some unusual properties for an
organic compound. It is a highly polar, high boiling, aprotic solvent
that is a white crystalline solid at room temperature. DMSO2 will
remain stable at high temperatures for extended amounts of time.
Molten dimethyl sulfone is a solvent for a wide variety of compounds
including organics, polymers and inorganic salts. A listing of
available solubility information is included in this bulletin. The high
solubility of many compounds in dimethyl sulfone as well as its high
temperature stability makes it an ideal reaction solvent for reactions
run best at high temperatures, with solvent properties similar to those
of sulfolane. Removal is easily accomplished by sublimation.
Additionally, DMSO2 is not appreciably hygroscopic, and is
extremely non-toxic.

Content
Introduction
1
Typical Physical Properties
2
Solvent Characteristics
3­ 5
Solubility in Organic Solvents
5
Other Property Information
6
Toxicity
6
Bulletin # 301B
DMSO2
Gaylord Chemical Company, L.L.C.
Your Global Leader For DMSO Solutions!
P.O. Box 1209
Slidell, LA 70459-1209 USA
1.800.426.6620 Office
1.985.649.0068 Fax
info@gaylordchemical.com