Synonyms: 1,2,5,6-Tetrahydro-6-(4-methoxyphenyl)-4-methyl-2-oxo-5-pyrimidinecarboxylic aci;1,2,5,6-Tetrahydro-6-(4-methoxyphenyl)-4-methyl-2-oxo-5-pyrimidinecarboxylic acid;6-(4-Methoxyphenyl)-4-methyl-2-oxo-1,2,5,6-tetrahydropyrimidine-5-carboxylic acid