Trace amine

Trace amines are endogenous compounds structurally related to classical biogenic amines, such as catecholamines, serotonin and histamine. Trace amines include p-tyramine, β-phenylethylamine, tryptamine, octopamine, and 3-iodothyronamine, and are found in the nervous systems of animals from insects to mammals. Trace amines can also include the endogenous psychedelic tryptamines, such as DMT.

Trace amines overlap substantially with classical biogenic amines neurotransmitters regarding to chemical properties, synthesis, and breakdown; trace amines commonly colocalize in neurons with these neurotransmitters.

Psychiatric disorders such as depression and schizophrenia have been linked to irregular levels of trace amines.