2-Hydroxypropyl-methanethiosulfonate 29803-57-4 Caswell No. 495A EPA Pesticide Chemical Code 035604 Methanesulfonothioic acid, S-(2-hydroxypropyl) ester S-(2-Hydroxypropyl)-thiomethanesulfonate S-(2-Hydroxypropyl)thiomethanesulfonate S-Methyl O-propylthiosulfate Thiosulfuric acid, S-methyl O-propyl ester