ethyl N-[(E)-[(2E)-2-(ethoxycarbonylhydrazinylidene)ethylidene]amino]carbamate

ethyl N-[(E)-[(1Z)-1-(ethoxycarbonylhydrazinylidene)propan-2-ylidene]amino]carbamate

乙基叠氮基甲酸酯

1,8-dimethyl-6-propyl-3H-imidazo[1,5-d][1,2,4]triazin-4-one

1-ethyl-8-methyl-6-propyl-3H-imidazo[1,5-d][1,2,4]triazin-4-one