5,6-Dihydroxytryptamine
3-(2-Aminoethyl)indole-5,6-diol; 5,6 Dihydroxytryptamine
Tryptamine substituted with two hydroxyl groups in positions 5 and 6. It is a neurotoxic serotonin analog that destroys serotonergic neurons preferentially and is used in neuropharmacologic research.