2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-phenyl-, disodium salt 5-Ethyl-5-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione disodium salt 54840-95-8 Phenobarbital disodium Phenobarbitone disodium salt