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4-methyl-α-Pyrrolidinobutiophenone (4-methyl PBP) is a synthetic cathinone with psychoactive properties which has recently been identified in party pills and powders. The metabolism of methyl PBP has been characterized. The biological and toxicological properties of this compound are unknown. This product is intended for forensic and research applications.

4'-Methyl-α-pyrrolidinobutyrophenone Hydrochloride is a new designer drug of abuse. A related compound of Pyrovalerone (P997750). Controlled substance.

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