Trimethoxyphenethylamine (TMPEA) may refer to the following:3,4,5-Trimethoxyphenethylamine 2,4,5-Trimethoxyphenethylamine 2,3,4-Trimethoxyphenethylamine 2,3,5-Trimethoxyphenethylamine 2,3,6-Trimethoxyphenethylamine 2,4,6-Trimethoxyphenethylamine