Synonyms: 2,4,6(1H,3H,5H)-pyrimidinetrione, 5-[(4-hydroxy-3-methoxyphenyl)methylene]-1,3-diphenyl-;5-(4-Hydroxy-3-methoxybenzylidene)-1,3-diphenylpyrimidine-2,4,6(1H,3H,5H)-trione;5-(4-Hydroxy-3-methoxy-benzylidene)-1,3-diphenyl-pyrimidine-2,4,6-trione