1-(4-Aminophenyl)-1-butanone 1-Butanone, 1-(4-aminophenyl)- 1688-71-7 4'-Aminobutyrophenone 4-14-00-00166 (Beilstein Handbook Reference) BRN 2084800 BUTYROPHENONE, 4'-AMINO- p-Aminobutyrophenone