3,5-Pyrazolidinedione, 1,2-diphenyl-4-(2-propenyl)- 3,5-Pyrazolidinedione, 4-allyl-1,2-diphenyl- 37606-83-0 4-Allyl-1,2-diphenyl-3,5-dioxopyrazolidine 4-Allyl-1,2-diphenyl-3,5-pyrazolidinedione 5-24-07-00240 (Beilstein Handbook Reference) BRN 0027847