Synonyms: | 5-(5-(Hexahydro-1,3-dimethyl-2,4,6-trioxo-5-pyrimidinyl)penta-2,4-dienylidene)-1,3-dimethylbarbituric acid, compound with triethylamine (1:1);N,N-diethylethanamine; 5-[5-(1,3-dimethyl-2,4,6-trioxo-hexahydropyrimidin-5-yl)penta-2,4-dienylidene]-1,3-dimethyl-hexahydropyrimidine-2,4,6-trione |