MMDA-2
MMDA-2, also known as 2-methoxy-4,5-methylenedioxyamphetamine or as 6-methoxy-MDA, is a psychedelic drug of the phenethylamine, amphetamine, and MDxx families. It is closely related to MMDA and MDA.
Alexander Shulgin was likely the first to synthesize MMDA-2. In his book PiHKAL, the dose is listed as 25 to 50mg, and the duration is listed as 8 to 12hours. Shulgin reports that MMDA-2 produces effects such as enhanced awareness, empathy, and visual facilitation and distortion, as well as some side effects like gastrointestinal upset and appetite loss. He states that 30mg is very similar to 80mg of MDA, and also remarks that it would be impossible for anyone to have a bad experience on the drug at that dose.
It has been found that MMDA-2, unlike MMDA but similarly to 6-methyl-MDA, is very weak or negligible at inducing the release of serotonin or dopamine, and accordingly, does not produce amphetamine-like responses in animals in drug discrimination studies. Instead, MMDA-2 is likely to act as a pure serotonin 5-HT2 receptor agonist similarly to the DOx series of compounds, with activation of the serotonin 5-HT2A receptor conferring its psychedelic effects.
MMDA-2 has been sold as a designer drug in Japan. It may be a controlled substance in Canada under phenethylamine blanket-ban language. The drug is not an explicitly controlled substance in the United States, but may be considered scheduled as an isomer of MMDA.