similarly , tryptamine , serotonin , 5-methoxytryptamine , bufotenine , and 5-methoxydimethyltryptamine can block the accumulation of the light-sensitive pool of camp , whereas tryptophan , melatonin , n-acetylserotonin , 5-methoxytryptophol , and tetrahydro-beta-carbolines are inactive .
C0036751
serotonin
C0000589
5-methoxytryptamine