1(2H)-Pyrimidinecarboxamide, 5-fluoro-3,4-dihydro-2,4-dioxo-N-phenyl- 1-Phenylcarbamoyl-5-fluoroureacil 5-Fluoro-3,4-dihydro-2,4-dioxo-N-phenyl-1(2H)-pyrimidinecarboxamide 56563-17-8