2-(4-Methyl-piperazin-1-yl)-ethylamine2-(4-methylpiperazin-1-yl)ethanamine[2-(4-methylpiperazin-1-yl)ethyl]amine trihydrochloride1-Amino-2-(4-methylpiperazin-1-yl)ethane2-(4-Methylpiperazin-1-yl)ethylamine1-(2-Aminoethyl)-4-methylpiperazine1-(2-Aminoethyl)-4-methylpiperazine2-(4-Methyl-1-piperazinyl)ethylamine1-(2-氨乙基)-4-甲基哌嗪2-(4-methyl-1-piperazinyl)ethanamine4-methylpiperazine-1-ethylamine