6-甲基-5-辛烯-2-酮

3-乙基-1H-吡唑-5-羧酸乙酯

1,1,3,3-tetrachlorobutan-2-one

6-chloro-2,3-dimethyl-4-oxidoquinoxalin-1-ium 1-oxide

2-氨基-7-乙基-4(1H)-蝶啶酮