4-乙基-5-氟吡啶

25-乙氧基杯[4]芳香烃

N-[dimethylamino(ethyl)phosphoryl]-N-methylmethanamine

双环[2.2.2]辛烷-1,4-二羧酸二乙酯

1-ethyl-1,4-dimethylpiperazin-1-ium,iodide