Para-Nitrophenylpiperazine
para-Nitrophenylpiperazine is a monoamine releasing agent of the phenylpiperazine family. It acts specifically as a selective partial serotonin releasing agent, with an of 19 to 43nM and an of 57%. The drug was inactive as a releasing agent of dopamine or norepinephrine. Its possible activity at serotonin receptors was not reported. pNPP was first described in the scientific literature by 2012.