Methyl Sulfonyl Methane(MSM) 1.Superior Methyl Sulfonyl Methane(MSM) 2.Assay:99.5% Min. 3.Good Price Methyl ... Sulfonyl Methane Synonyms Name: Dimethyl sulfone; MSM; CAS No.: 67-71-0Molecular Formula: C2H6O2SFunction:MSM supports healthy connective tissues like tendons, ... in conditions such as arthritis, muscle pains, bursitis, etc. MSM should be considered an integral part of any health care ...