1,7-Dioxo-8-(4'-chlorophenyl)-1,3,4,5,7,8-hexahydrodifuro(3,4-b,3',4'-e)pyridine 120260-18-6 1H,3H-Difuro(3,4-b:3',4'-e)pyridine-1,7(4H)-dione, 5,8-dihydro-8-(4-chlorophenyl)- 5,8-Dihydro-8-(4-chlorophenyl)-1H,3H-difuro(3,4-b:3',4'-e)pyridine-1,7(4H)-dione BRN 3560962