2H-1,2,4-Oxadiazin-3(4H)-one, dihydro-4-methyl-2-phenyl- 30148-96-0 4-Methyl-2-phenylperhydro-1,2,4-oxadiazine-3-one Dihydro-4-methyl-2-phenyl-2H-1,2,4-oxadiazin-3(4H)-one