Substituted methylenedioxyphenethylamine
The substituted methylenedioxyphenethylamines (abbreviated as MDxx) represent a diverse chemical class of compounds derived from phenethylamines. This category encompasses numerous psychoactive substances with entactogenic, psychedelic, and/or stimulant properties, in addition to entheogens.
Source: Wikipedia — Substituted methylenedioxyphenethylamine (CC BY-SA 4.0)