3-(Dimethylamino)piperidine50534-49-130 % similar 1-[1-(3-Methoxy-4-nitrophenyl)-4-piperidinyl]-4-methylpiperazine761440-65-730 % similar 4-Propylpiperidine22398-09-030 % similar 1-tert-Butylpiperazine38216-72-730 % similar 4-Methoxypiperidine4045-24-330 % similar Nitrogen mustard55-86-730 % similar 4-Piperidineethanol622-26-430 % similar