4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-2,3-dihydro-5,6,7,8-tetramethoxy-

4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-2,3-dihydro-5,6,7,8-tetramethoxy- · CAS 67549-69-3