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1-(1-methylpiperidin-4-yl)piperazine, also known as MPP, is a piperazine derivative containing two piperazine groups and one methylpiperidine group. It is a white crystalline powder, present in the form of a fused solid.

1-(1-methylpiperidin-4-yl)piperazine is used as a pharmaceutical or organic synthesis intermediate for the preparation of piperidine drugs.

1-(1-methylpiperidin-4-yl)piperazine is synthesized by reacting 4-Methylpiperidine with Piperazine. The product is then treated with hydrochloric acid to obtain the hydrochloride salt of MPP. Another synthesis method involves reacting 1-Methylpiperazine with N-(tert-Butoxycarbonyl)-4-piperidone.