4-[3,5-Dioxo-1,2-Di(Phenyl)Pyrazolidin-4-Yl]-1,2-Di(Phenyl)Pyrazolidine-3,5-Dione
[CAS# 3474-99-5]

Identification

• Name: 4-[3,5-Dioxo-1,2-Di(Phenyl)Pyrazolidin-4-Yl]-1,2-Di(Phenyl)Pyrazolidine-3,5-Dione
• Synonyms: 4-[3,5-Dioxo-1,2-Di(Phenyl)-4-Pyrazolidinyl]-1,2-Di(Phenyl)Pyrazolidine-3,5-Dione; 4-[3,5-Diketo-1,2-Di(Phenyl)Pyrazolidin-4-Yl]-1,2-Di(Phenyl)Pyrazolidine-3,5-Quinone; (4,4'-Bipyrazolidine)-3,3',5,5'-Tetrone, 1,1',2,2'-Tetraphenyl-
• Molecular Formula: C₃₀H₂₂N₄O₄
• Molecular Weight: 502.53
• CAS Registry Number: 3474-99-5
• SMILES: C1=CC=C(C=C1)N5C(=O)C(C3C(=O)N(C2=CC=CC=C2)N(C3=O)C4=CC=CC=C4)C(N5C6=CC=CC=C6)=O
• InChI: 1S/C30H22N4O4/c35-27-25(28(36)32(22-15-7-2-8-16-22)31(27)21-13-5-1-6-14-21)26-29(37)33(23-17-9-3-10-18-23)34(30(26)38)24-19-11-4-12-20-24/h1-20,25-26H
• InChIKey: USKAVCMWCUTATL-UHFFFAOYSA-N

Properties

• Density: 1.403g/cm³ (Cal.)
• Boiling point: 645.554°C at 760 mmHg (Cal.)
• Flash point: 275.472°C (Cal.)

References

• (1): Cardani C, Scaramuzza A, Mondelli R, Merlini L. Sulle 1,2-difenil-3,5-dichetopirazolidine. Nota V. Sul dipirafene e tripirafene, Gazzetta Chimica Italiana, 1963, 93, 1353-1363
• (2): Mondelli R, Merlini L, Bovis G, Cardani C. Sulle 1,2-difenil-3,5-dichetopirazolidine. Nota VI. Azione della luce sul dipirafene, Gazzetta Chimica Italiana, 1964, 94, 306-310
• (3): Mondelli R, Merlini L. Sulla 1,2-difenil-3,5-dichetopirazolidina. Nota VIII. Tautomeria e spettri di risonanza magnetica nucleare di alcuni derivati., Gazzetta Chimica Italiana, 1965, 95, 1371-1377
• (4): Selva A, Citterio A, Merlini L. Mass Spectrometry of Heterocyclic compounds. VIII. Electron-impact-induced fragmentation of 1,2-diphenyl-pyrazolidine-3,5-dione and some 4-substituted derivatives, Organic Mass Spectrometry 1975, 10, 606-616
• (5): Cardillo G, Merlini L, Boeri E. Sulle 1,2-difenil-3,5-dichetopirazolidine. Nota IX. Prodotti di reazione con NO2. , Gazzetta Chimica Italiana, 1966, 96, 973-985