Indolylpropylaminopentane
Indolylpropylaminopentane (IPAP), also known as α,N-dipropyltryptamine (α,N-DPT), is a monoaminergic activity enhancer (MAE) that is closely related to benzofuranylpropylaminopentane (BPAP) and phenylpropylaminopentane (PPAP). It is a tryptamine derivative and the corresponding analogue of PPAP and BPAP with an indole ring instead of a benzene ring or benzofuran ring, respectively.
Source: Wikipedia — Indolylpropylaminopentane (CC BY-SA 4.0)