3,4-Dimethylphenethylamine
3,4-Dimethylphenethylamine (DMePEA) is a drug of the phenethylamine family related to the psychedelic drug mescaline (3,4,5-trimethoxyphenethylamine; 3,4,5-TMPEA). It is one of the positional isomers of dimethylphenethylamine.
Source: Wikipedia — 3,4-Dimethylphenethylamine (CC BY-SA 4.0)