1-Propanone, 1-(3,4-dimethoxyphenyl)-2-methyl- (9CI) 14046-55-0 3',4'-Dimethoxyisobutyrophenone 4-08-00-01869 (Beilstein Handbook Reference) BRN 3263789 ISOBUTYROPHENONE, 3',4'-DIMETHOXY- NSC 63844 Propiophenone, 3',4'-dimethoxy-2-methyl- (6CI)