2,4-Dimethoxyphenethylamine
2,4-Dimethoxyphenethylamine (2,4-DMPEA), also known as DMPEA-3, is a drug of the phenethylamine family related to the psychedelic drug mescaline (3,4,5-trimethoxyphenethylamine). It is one of the positional isomers of dimethoxyphenethylamine.
Source: Wikipedia — 2,4-Dimethoxyphenethylamine (CC BY-SA 4.0)