3,4-Methylenedioxy-"N","N","N"-trimethylamphetamine (MDTMA) is a chemical compound of the amphetamine and methylenedioxyamphetamine families. In contrast to 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxy-"N"-methylamphetamine (MDMA), and 3,4-methylenedioxy-"N","N"-dimethylamphetamine (MDDMA), MDTMA is completely inactive as a monoamine releasing agent.