2,3-MDMA is an aromatic positional isomer of 3,4-MDMA (ecstasy, ), a euphoric entactogen that is illegal in most countries and is regulated (Schedule I) in the United States. While 2,3-MDMA exhibits a similar potency to 3,4-MDMA for inhibition of the noradrenalin transporter (IC50s = 6.2 and 6.6 μM, respectively), it is less potent than 3,4-MDMA for inhibition of the serotonin transporter (IC50s = 82 μM and 34.8 μM, respectively). This compound is intended for forensic and research purposes only.