1-Propanone, 1-(2,5-dimethoxyphenyl)- (9CI) 2',5'-Dimethoxypropiophenone 4-08-00-01839 (Beilstein Handbook Reference) 5803-30-5 BRN 1945185 EINECS 227-357-7 Propiophenone, 2',5'-dimethoxy-