6,8-dimethyl-5,7-dioxo-5,6,7,8-tetrahydropyrimido[5,4-e][1,2,4]triazine-3-carboxylic acid

3,6,8-trimethylpyrimido[5,4-e][1,2,4]triazine-5,7-dione

醋酸

1,2,3,4-Tetrahydro-1,3-dimethyl-6-(carboxymethylidenehydrazino)pyrimidine-2,4-dione

3-(hydroxymethyl)-6,8-dimethylpyrimido[5,4-e][1,2,4]triazine-5,7(6H,8H)-dione