4-11-00-00482 (Beilstein Handbook Reference) 4973-66-4 BRN 1527744 Benzenesulfonothioic acid, 4-methyl-, S-methyl ester (9CI) EINECS 225-621-6 NSC 509687 S-Methyl p-toluenethiosulfonate S-Methyl toluene-p-thiosulphonate p-Toluenesulfonic acid, thio-, S-methyl ester