4-(trifluoromethoxy)-3,5-dimethoxyphenethylamine, one of the most potent scalines (15–40 mg, 14–24 h; ~34x mescaline's 5-HT2A affinity). Sources say 'first described … by 2012' — his fluorine review — while also citing the 2002 Helvetica paper, so the exact first-report year is 2002 or 2012 and I could not resolve which.