SEARCH Articles Figures Tables 6-Hydroxy-2,4,5- -pyrimidine trione Pyrido pyrimidine-2,4,7-triones Pyrimidine trione Pyrimidine trione Pyrimidine-2,4,6-trione, 2,5-dimethyl Pyrimidine-2,4,6-triones (barbituric acids Pyrimido pyrimidine-2,4,7-triones TRIONE Trion Trions