DPT or as its formal name N,N-Dipropyltryptamine (also known as Dipropyltryptamine or "The Light") is a synthetic psychedelic tryptamine that produces powerful, short-lived visionary psychedelic effects similar to, but often considered to be more unpredictable and "challenging," than those of DMT when administered. It is a structural homolog of DMT that is often reported to be uniquely similar in its hallucinogenic intensity, albeit with a longer duration and a tendency to feel more "bizarre" and "chaotic", relative to DMT and other psychedelic tryptamines.