N,N'-二乙酰基肼

1-acetylethoxycarbonylformamidrazone

2-acetyl-5-ethoxycarbonyltetrazole

diethyl 1H-1,2,4-triazole-3,5-dicarboxylate

[4,6-bis(hydroxymethyl)-1,3,5-triazin-2-yl]methanol