MMDA-5
MMDA-5, also known as 6-methoxy-2,3-methylenedioxyamphetamine or as 6-methoxy-ORTHO-MDA, is a psychoactive drug of the phenethylamine, amphetamine, and MDxx families related to ORTHO-MDA (2,3-MDA). It is the 6-methoxy derivative of ORTHO-MDA and is a positional isomer of MMDA-2 (6-MeO-3,4-MDA) and related compounds like MMDA (5-MeO-3,4-MDA) and MMDA-3a (2-MeO-3,4-MDA).