MethylSulfonylMethane (MSM)

Methylsulfonylmethane is a dietary supplement form of sulfur that is found in our living tissues. MSM supports healthy connective tissues like tendons, ligaments, and muscle. Thus, it is important in conditions such as arthritis, muscle pains, bursitis, etc. MSM should be considered an integral part of any healthcare practice because of its physiological action, indirect importance, and current/future uses.

To understand MSM, some background information is necessary. MSM is a “naturally-occurring nutrient found in normal human diets”. It gets into the diet through the sulfur cycle. Ocean plankton release sulfur compounds which rise into the ozone where ultra-violet light makes MSM and DMSO. DMSO, dimethyl sulfoxide, is a precursor to MSM. MSM and DMSO return to the surface of the earth in rain. Plants concentrate MSM and return it to the earth and the sea. Evaporation into the air results in their return to the earth.

Dimethyl Sulfoxide (DMSO)

Dimethyl Sulfoxide (DMSO) is the chemical compound with the formula (CH3)2SO.

This colourless liquid is an important polar aprotic solvent that dissolves both polar and non-polar compounds and is miscible in a wide range of organic solvents as well as water. It has a distinctive property of penetrating the skin very readily, allowing the handler to taste it. Its taste has been described as oyster- or garlic-like.

Dimethyl sulfoxide is a by-product of wood pulping. A supplier of DMSO is the Gaylord Chemical Corporation in the USA.

DMSO is an important polar aprotic solvent. It is less toxic than other members of this class such as dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, HMPA. Because of its excellent solvating power, DMSO is frequently used as solvent for chemical reactions involving salts, most notably Finkelstein reactions and other nucleophilic substitutions. Because DMSO is only weakly acidic, it tolerates relatively strong bases, and as such has been extensively used in the study and chemistry of carbanions. The work of the Bordwell group has provided a valuable set of non-aqueous pKa values (C-H, O-H, S-H and N-H acidities) for hundreds of organic compounds in DMSO.

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