5,6-bis(phenylamino)isoindole-1,3-dione 5,6-bis(phenylamino)isoindoline-1,3-dione 5,6-bis(phenylamino)isoindoline-1,3-quinone NCGC00093700-03 NCGC00093700-02 DAPH 5,6-Bis(phenylamino)-1H-isoindole-1,3(2H)-dione D3943_SIGMA NCGC00093700-01 DAPH-1