2-Amino-1-(3,4-dihydroxyphenyl)ethanone hydrochloride 499-61-6 5090-29-9 Acetophenone, 2-amino-3',4'-dihydroxy-, hydrochloride (7CI,8CI) Ethanone, 2-amino-1-(3,4-dihydroxyphenyl)-, hydrochloride Noradenalone hydrochloride