Source:http://linkedlifedata.com/resource/umls/id/C0025706
MSH: An alkylating agent in cancer therapy that may also act as a mutagen by interfering with and causing damage to DNA.,NCI: A stable, colorless, combustible liquid that emits toxic fumes of sulfoxide when heated to decomposition. Methyl methanesulfonate is used for laboratory purposes as a catalyst in chemical synthesis and has been tested clinically as a cancer chemotherapeutic agent. This substance is an alkylating agent and acts as a mutagen by altering and damaging DNA and is reasonably anticipated to be a human carcinogen. (NCI05)