1,2,4-Benzenetriol, 5-(2-aminoethyl)-, hydrobromide 1199-18-4 5-(2-Aminoethyl)-4-hydroxypyrocatechol hydrobromide 6-Hydroxydopamine hydrobromide 6-Hydroxydopamine hydrogen bromide 636-00-0 EINECS 211-247-0 NSC 238469 Oxidopamine hydrobromide