4-CL-PVP CRYSTAL is closely relevant in construction to the favored substituted cathinone ?-PVP. ?-PVP by itself was to start with designed during the sixties. It rose to prevalent level of popularity amongst cathinone aficionados in 2013 as a compound that had effects remarkably comparable to the stimulant MDPV (Methylenedioxypyrovalerone). Bo

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