2-Acetyl-4,6-dimethylisothiazolo(5,4-b)pyridin-3(2H)-one 2H-2-Acetyl-4,6-dimethylpyrido(3,2-d)isothiazolin-3-one 97248-88-9 Isothiazolo(5,4-b)pyridin-3(2H)-one, 2-acetyl-4,6-dimethyl-