4-(2-(N-Butyl-N-propylamino)ethyl)pyrocatechol hydrochloride 4-(2-N-n-Propyl-N-n-butylaminoethyl)-1,2-benzenediol hydrochloride 57464-71-8 71800-28-7 N-Butyl-N-propyldopamine hydrochloride N-Propyl-N-butyl-beta-(3,4-dihydroxyphenyl)ethylamine hydrochloride Propylbutyldopamine hydrochloride Pyrocatechol, 4-(2-(butyl-propylamino)ethyl)-, hydrochloride