120260-22-2 1H,3H-Difuro(3,4-b:3',4'-e)pyridine-1,7(5H)-dione, 8-(3-chlorophenyl)- 8-(3-Chlorophenyl)-1H,3H-difuro(3,4-b:3',4'-e)pyridine-1,7(5H)-dione BRN 3560084