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| Clinical data | |
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| Other names | 2,3,5,6-TeMA; TeMA-3 | 
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| Chemical and physical data | |
| Formula | C13H21NO4 | 
| Molar mass | 255.314 g·mol−1 | 
| 3D model (JSmol) | |
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2,3,5,6-Tetramethoxyamphetamine (2,3,5,6-TeMA), also known as TeMA-3, is a chemical compound of the phenethylamine and amphetamine families related to the psychedelic drug mescaline (3,4,5-trimethoxyphenethylamine). [1] [2] [3] It was first described in the scientific literature by Alexander Shulgin and colleagues in 1969, but had not been synthesized or assessed by them at that time. [1] [3] The fluorescence of TeMA-3 has been studied. [4] Very little appears to be known about TeMA-3. [1]