1-(1-Methyl-1-(3-methyl-5-isothiazolyl))methylenethiosemicarbazide 3683-63-4 BRN 0521185 KETONE, METHYL 3-METHYL-5-ISOTHIAZOLYL, THIOSEMICARBAZONE Methyl 3-methyl-5-isothiazolyl ketone thiosemicarbazone Thiosemicarbazide, 1-(1-methyl-1-(3-methyl-5-isothiazolyl))methylene-