N10-(Ethoxycarbonyl)tryptamine is an intermediate in the synthesis of N-Methyltryptamine-d3 (M331922), which is a labeled N-Methyltryptamine, a N-monomethylated derivative of tryptamine. N-Methyltryptamine, unlike its unmethylated counterpart, does not produce any psychoactive effects. High levels of N-Methyltryptamine have been found in cisternal cerebrospinal fluid of patients with acute paranoid schizophrenia.