1,2-Benzenediol, 4-(2-(butylpropylamino)ethyl)- 57464-71-8 71800-28-7 N-Pbda N-n-Propyl-N-n-butyl-beta-(3,4-dihydroxyphenyl)ethylamine N-n-Propyl-N-n-butyl-beta-dopamine Propylbutyldopamine