ethyl 3-imino-3-methoxypropanoate,hydrochloride

1-氰基-环庚烷羧酸乙酯

4,4-二甲基-2,6-二氧代哌啶-3,5-二甲腈

methyl (2E)-2-cyano-2-hydroxyiminoacetate

2-(4-吡啶基)-4-氨基-6-羟基嘧啶