Indolamines are a family of neurotransmitters that share a common molecular structure.
Indolamines are a classification of monoamine neurotransmitter, along with catecholamines and ethylamine derivatives.
A common example of an indolamine is the tryptophan derivative serotonin, a neurotransmitter involved in mood and sleep.
In biochemistry, indolamines are substituted indole compounds that contain an amino group.
[citation needed] Indolamines are biologically synthesized from the essential amino acid tryptophan.