2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-methyl-5-phenyl- 5-Methyl-5-phenylbarbituric acid 5-Methyl-5-phenylbarbityric acid 5-Phenyl-5-methylbarbituric acid 76-94-8 Barbituric acid, 5-methyl-5-phenyl- Eudan Heptobarbital Mephebarbital Methylphenylbarbital NSC80543 Phenylmethylbarbituric acid Rutonal