1,2-Dihydro-5-butyl-1,3-diphenyl-4,6(3H,5H)pyrimidinedione 4,6(3H,5H)-Pyrimidinedione, 1,2-dihydro-5-butyl-1,3-diphenyl- 5-n-Butyl-1,3-diphenyl-4,6-dioxo-hexahydro-pyrimidin [German] UV9058190