n-acetylserotonin , 5-methoxytryptamine , serotonin , tryptophan , 6-hydroxymelatonin , 6-methoxytetrahydroharmalan , and several other indole and beta-carboline compounds do not influence the estimation of melatonin in the radioimmunoassay .
C0000589
5-methoxytryptamine
C0036751
serotonin