a-PHiP Big Crystal, α-PiHP; α-Pyrrolidinoisohexaphenone; 4'-Me-PVP, 4'M-PVP.
a-PiHP is a stimulant compound which is a derivative of cathinone and pyrovalerone group of chemicals and was developed in late 2015 and it is the result of understanding the quantitative structure–activity relationship of the pyrovalerone and cathinone derivatives acting as NDRI(norepinephrine-dopamine reuptake inhibitor). This time our team created a very highly selective compound with much higher affinity in binding and in inhibiting the dopamine transporter over norepinephrine transporter. This resulted in creation of very dose dependant chemical which can provide a large range of effects. It is also possible for this chemical to have low affinity to serotonin transorter, but for amounts needed to succesful research this effect can be skipped. If you are still wondering if you should buy this chemical, there is an information which will fully convince you. α-PiHP is a full substitute for α-PVP and Pentedrone and it provides similar and even improved effects according to structure analysis. Only 5mg of a-PiHP is needed for succesful research but it can be safely increased to maximum 25mg for the first time laboratory test. The duration of chemical reaction in laboratory starts after 20 seconds to 5 minutes (depending of used labgear) with full results presented after 15, minutes which remain constant for over 90 minutes.