20358-32-1 3,5-Pyrazolidinedione, 4-(2-(2,5-dimethylbenzoyl)ethyl)-1,2-diphenyl- 4-(2-(2,5-Dimethylbenzoyl)ethyl)-1,2-diphenyl-3,5-pyrazolidinedione 5-24-09-00316 (Beilstein Handbook Reference) BRN 0584804