156-72-9 4-04-00-00022 (Beilstein Handbook Reference) AI3-51799 BRN 1785371 ENT-51799 MDMS METHANEDIOL, DIMETHANESULFONATE Methanesulfonic acid, methylene ester Methylene bis(methanesulfonate) Methylene dimethane sulfonate Methylene dimethanesulfonate NSC 171337