16899-81-3 3,4-Dihydroxy-.alpha.-(isopropylamino)acetophenone, hydrochloride Acetophenone (8CI), 3',4'-dihydroxy-2-(isopropylamino)-, hydrochloride Ethanone (9CI), 1-(3,4-dihydroxyphenyl)-2-[(1-methylethyl)amino]-, hydrochloride NSC23623