4-Methylpentedrone (also known as 4-MPD and 4-Methyl-α-methylamino-valerophenone), is a stimulant drug of the cathinone class that has been sold online as a designer drug. It is a higher homologue of 4-Methylmethcathinone (Mephedrone) and 4-Methylbuphedrone (4-MeMABP), and the p-Methyl analogue of Pentedrone.
||Full chemical name
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||Formulation A powder solid
||λmax 221, 315 nm
4-MPD acts as a reuptake inhibitor for dopamine and norepinephrine without causing release.
Another compound, 4-Methyl-N-Ethyl-Pentedrone (4-MEAP, 4-MEAPP) has been found to be incorrectly sold as 4-Methylpentedrone.
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