6-methyl-3-phenyl-8H-pyrimido[5,4-e][1,2,4]triazine-5,7-dione

硫酸二甲酯

甲基碘

6-(2-benzylidenehydrazinyl)-1,3-dimethyl-5-((4-nitrophenyl)diazenyl)pyrimidine-2,4(1H,3H)-dione

6,8-dimethyl-4-oxidopyrimido[5,4-e][1,2,4]triazin-4-ium-5,7-dione