Synonyms: ETHYL 5-METHYL-3-(METHYLTHIO)-4,4-DIOXO-4,5-DIHYDRO-4LAMBDA6-BENZO[C]THIENO[3,4-E][1,2]THIAZINE-1-CARBOXYLATE;Ethyl 5-Me-3-(methylthio)-4,4-dioxo-5H-thieno[3,4-c][2,1]benzothiazine-1-carboxylate;BUTTPARK 94\04-51;ethyl 5-methyl-3-(methylthio)-4,4-dioxo-4,5-dihydro-4lambda~6~-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate;ETHYL 4,4-DIOXO-5-METHYL-3-(METHYLTHIO)THIENO(3,4-C)BENZO(2,1)THIAZINE-1-CARBOXYLATE