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| Other names | 2,3,4,6-TeMPEA; TeMPEA-2 | 
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| Formula | C12H19NO4 | 
| Molar mass | 241.287 g·mol−1 | 
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2,3,4,6-Tetramethoxyphenethylamine (2,3,4,6-TeMPEA), also known as TeMPEA-2, is a drug of the phenethylamine family related to the psychedelic drug mescaline (3,4,5-trimethoxyphenethylamine). [1] [2] It is one of the possible positional isomers of tetramethoxyphenethylamine (TeMPEA). [1] [2] The in-vitro metabolism and effects of TeMPEA-2 on behavior in animals have been studied. [1] [3] [4] The drug showed little or no activity as a norepinephrine releasing agent in vitro. [1] [5] It does not seem to have been tested in humans. [1] TeMPEA-2 was first described in the scientific literature by 1955. [1] [6]