4,6-diphenyl-3a,7a-dihydro-2-benzofuran-1,3-dione
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3,5-Cyclohexadiene-1,2-dicarboxylicanhydride, 3,5-diphenyl- (8CI); NSC 140646; [1,1':3',1''-Terphenyl]-4',5'-dicarboxylicanhydride, 4',5'-dihydro-