117991-82-9 2949-92-0 31761-75-8 4-04-00-00031 (Beilstein Handbook Reference) BRN 1446059 CCRIS 7217 EINECS 220-970-0 METHANESULFONIC ACID, THIO-, S-METHYL ESTER Methanesulfonothioic acid, S-methyl ester Methyl methanesulfonothioate Methyl methanethiolsulfonate Methyl methanethiosulfonate NSC 21545 S-Methyl methanesulfonothioate S-Methyl methanethiosulfonate S-Methyl methanethiosulphonate