4,5-Dihydroxytryptamine
4,5-Dihydroxytryptamine is a serotonergic neurotoxin of the tryptamine family. It is structurally related to the monoamine neurotransmitter serotonin. The drug is also a monoamine [reuptake inhibitor]. Its analogue 4-hydroxy-5-methoxytryptamine is also a serotonergic neurotoxin. Rapid auto-oxidation of 4,5-DHT and 4-HO-5-MeO-T prevents them from being used as serotonergic neurotoxins in scientific research.