3-Methylphenethylamine (3MPEA) is an organic compound with the chemical formula of . 3MPEA is a human trace amine associated receptor 1 (TAAR1) agonist, a property which it shares with its monomethylated phenethylamine isomers, such as amphetamine (ñ-methylphenethylamine), , and (a trace amine).
Very little data, even on toxicity, is available about its effects on humans other than that it is corrosive and activates the human TAAR1 receptor.