Synonyms: Murexide (6CI);ammonium purpurate;MX;Ammonium purpurate;Ammonium salt purpuric acid;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-((hexahydro-2,4,6-;Ammonium 5-(2,4,6-trioxoperhydropyrimidin-5-;Barbituric acid, 5,5'-nitrilodi-, monoammonium salt (VAN);