1,2-Difenil-3,5-dicheto-4-propil-pirazolidina [Italian] 1,2-Diphenyl-4-propyl-3,5-pyrazolidinedione 3,5-Pyrazolidinedione, 1,2-diphenyl-4-propyl- 5-24-05-00386 (Beilstein Handbook Reference) 6082-56-0 BRN 0278629 DA-231 G 13838 P.M. 231