Phenylisobutylamine
Phenylisobutylamine, also known as α-ethylphenethylamine (AEPEA) or as butanphenamine (B), is a stimulant drug of the phenethylamine and amphetamine families. It is a higher homologue of amphetamine, differing from amphetamine's molecular structure only by the substitution of the methyl group at the alpha position of the side chain with an ethyl group.