PIGMENT RED 254;4-c]pyrrole-1,4-dione,3,6-bis(4-chlorophenyl)-2,5-dihydro-pyrrolo[;4-c]pyrrole-1,4-dione,3,6-bis(4-chlorophenyl)-2,5-dihydro-Pyrrolo[3;C.I.Pigmentred254;CROMOPHTAL DPP RED BPN;C.I. 56110;3,6-BIS(4-CHLOROPHENYL)-2,5-DIHYDROPYRROLO[3,4-C]PY