1-乙基-3,7-二甲基嘌呤-2,6-二酮

1-乙基-1,4-二氢-4-氧代-7-(4-吡啶基)喹啉-3-羧酸乙酯

2-ethyl-1,3,5-trimethylbenzene

2-ethyl-1-phenylbutane-1,3-dione

8-ethylsulfanyl-1,3-dimethyl-7H-purine-2,6-dione