1,2-Diphenyl-4-(2-(2,4,6-trimethylbenzoyl)ethyl)-3,5-pyrazolidinedione 20358-34-3 3,5-Pyrazolidinedione, 1,2-diphenyl-4-(2-(2,4,6-trimethylbenzoyl)ethyl)- 5-24-09-00318 (Beilstein Handbook Reference) BRN 0588783