Synonyms: 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-[(2,3-dihydro-6-methyl-2-oxo-1H-benzimidazol-5-yl)azo]- (9CI);5-((2,3-Dihydro-6-methyl-2-oxo-1H-benzimidazol-5-yl)azo)-6-hydroxy-2,4(1H,3H)-pyrimidinedione;C.I. Pigment Orange 64;Cromophtal Orange GL;Cromophtal Orange GP;2,4,6(1H,3H,5H)-Pyrimidinetrione,5-[2-(2,3-dihydro-6-methyl-2-oxo-1H-benzimidazol-5-yl)diazenyl]-;5-((2,3-Dihydro-6-methyl-2-oxo-1H-benzimidazol-5-yl)azo)barbituricacid;