(E)-2,3-Dihydro-3-((3,4-dimethoxyphenyl)methylene)-6-methoxy-4H-1-benzopyran-4-one 130688-89-0 4H-1-Benzopyran-4-one, 2,3-dihydro-3-((3,4-dimethoxyphenyl)methylene)-6-methoxy-, (E)- BRN 3625675