3,4-Isopropylidenedioxyamphetamine
3,4-Isopropylidenedioxyamphetamine (IDA) is a monoamine releasing agent (MRA) of the amphetamine family related to 3,4-methylenedioxyamphetamine (MDA) developed by David E. Nichols and colleagues. It is considerably less potent than MDA as an MRA in vitro.
Source: Wikipedia — 3,4-Isopropylidenedioxyamphetamine (CC BY-SA 4.0)