3,5-Pyrazolidinedione, 4-(2-(o-fluorobenzoyl)ethyl)-1,2-diphenyl- 4-(2-(o-Fluorobenzoyl)ethyl)-1,2-diphenyl-3,5-pyrazolidinedione 4-(2-Fluorbenzoylethyl)-1,2-difenyl-3,5-dioxopyrazolidinu [Polish] UQ8655750