1H-Isoindol-1-one, 3,3'-((2-methyl-1,3-phenylene)diimino)bis(4,5,6,7-tetrachloro- 3,3'-((2-Methyl-1,3-phenylene)diimino)bis(4,5,6,7-tetrachloro-1H-isoindol-1-one) 5045-40-9 C.I. Pigment Yellow 109 EINECS 225-744-5