The chemical PMSF has a designated molecular formula of C7H7FO2S and a molecular weight of 174.189 g/mol. Synonyms may include: Phenylmethylsulfonyl fluoride, 3-11-00-00331 (Beilstein Handbook Reference), Benzenemethanesulfonyl fluoride, Benzylsulfonyl fluoride, Benzylsulphonyl fluoride, BRN 2088311, EINECS 206-350-2, NSC 88499, Phenylmethanesulfonyl fluoride, UNII-57KD15003I (ChemID). PMSF has been assigned a MeSH pharmacological action of: Enzyme Inhibitor, Protease Inhibitor.