2-(3,4-Dimethoxyphenyl)-1,3-perhydrothiazine-4-one 4H-1,3-Thiazin-4-one, tetrahydro-2-(3,4-dimethoxyphenyl)- 82697-77-6 Tetrahydro-2-(3,4-dimethoxyphenyl)-4H-1,3-thiazin-4-one