2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-((4-butoxy-3-methoxyphenyl)methyl)-1-phenyl- 5-((4-Butoxy-3-methoxyphenyl)methyl)-1-phenyl-2,4,6(1H,3H,5H)-pyrimidinetrione 57737-55-0