CAS # 129476-58-0, also known as 4-ethoxyamphetamine (4-ETA), is a psychoactive medication and research chemical belonging to the chemical groups of phenethylamine and amphetamine, which is closely linked to the notorious para-methoxyamphetamine (PMA). In animal research, para-Ethoxyamphetamine has similar results to PMA, but with slightly weaker stimulant effects. It has substantial MAOI activity, like PMA, and is likely to have similar dangers related to its use.