Tryptamine hydrochloride is a derivative of the amino acid tryptophan. Tryptamine hydrochloride is psychoactive and acts as a neurotransmitter in the body, affecting mood, perception and cognition. Tryptamine is synthesized by decarboxylation of L-tryptophan and occurs endogenously at low concentrations in the mammalian brain. In its hydrochloride form, Tryptamine hydrochloride hydrochloride, it is commonly used as a research chemical and as a starting material for the synthesis of other organic compounds.