26485-73-4 3,5-Pyrazolidinedione, 4-benzyl-1,2-diphenyl- 4-Benzil-1,2-difenil-3,5-dicheto-pirazolidina [Italian] 4-Benzyl-1,2-diphenyl-3,5-pyrazolidinedione 5-24-08-00056 (Beilstein Handbook Reference) BRN 0307964 DA-220 P.M. 342