5-Methylmethiopropamine (5-MMPA / Mephedrene) is a stimulant drug which is a ring-substituted derivative of methiopropamine. It is not a substituted cathinone derivative like mephedrone, as it lacks a ketone group at the β position of the aliphatic side chain, but instead more closely resembles substituted amphetamines.
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5-MMPA stock last updated at: May 2025