4-(2-(N-Butyl-N-methylamino)ethyl)pyrocatechol hydrochloride 57464-70-7 N-Butyl-N-methyldopamine hydrochloride N-Methyl-N-butyl-beta-(3,4-dihydroxy-phenyl)ethylamine hydrochloride Pyrocatechol, 4-(2-(butyl-methylamino)ethyl)-, hydrochloride