4-Chloro-α-pyrrolidinovalerophenone (also known as 4-chloro-α-pyrrolidinopentiophenone, 4-chloro-α-PVP, 4Cl-PVP, or 4C-PVP) is an emerging recreational designer drug of the pyrrolidinophenone class, similar in structure to α-pyrrolidinopentiophenone (α-PVP). The pharmacology and toxicity of this compound is unknown, though it is presumed to be a stimulant drug.

In the United States, 4-chloro-α-PVP is a Schedule I Controlled Substance.

See also 3F-PVP 4-Chloromethcathinone 4-Cl-PHP 4F-PVP 4-Et-PVP MFPVP MOPVP DMPVP MDPV O-2390 Pyrovalerone RTI-31

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