1-methyl-4-[(4-methylpiperazin-1-yl)methyl]piperazine

1-甲基-4-乙氧基甲基哌嗪

3-(4-甲基哌嗪-1-甲基)-苯胺

1-(2-Methoxy-4-nitrophenyl)-4-methylpiperazine

1-甲基-4-(3-硝基苯)哌嗪