(+-)-5,11-Dimethyl-2,3,8,9-tetramethoxy-11H-indeno(1,2-c)isoquinolone (+-)-6,11-Dimethyl-6,11-dihydro-5H-indeno(1,2-c)isoquinolin-5-one 125455-90-5 5H-Indeno(1,2-c)isoquinolin-5-one, 6,11-dihydro-6,11-dimethyl-, (+-)- BRN 3570707