The 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene, with the CAS registry number 128055-74-3, is also called 9,9'-spirobi[9H-fluorene], 2,2',7,7'-tetrabromo-. It belongs to the product category of Fluorene Derivatives. And the molecular formula of this chemical is C₂₅H₁₂Br₄.

The physical properties of 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene are as following: (1)ACD/LogP: 9.58; (2)# of Rule of 5 Violations: 2; (3)#H bond acceptors: 0; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Polar Surface Area: 0 Å²; (7)Index of Refraction: 1.843; (8)Molar Refractivity: 132.29 cm³; (9)Molar Volume: 297.8 cm³; (10)Polarizability: 52.44×10^-24cm³; (11)Surface Tension: 83.1 dyne/cm; (12)Density: 2.12 g/cm³; (13)Flash Point: 322.5 °C; (14)Enthalpy of Vaporization: 90.26 kJ/mol; (15)Boiling Point: 633.7 °C at 760 mmHg; (16)Vapour Pressure: 2.83E-15 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: Brc5ccc6c1ccc(Br)cc1C4(c2cc(Br)ccc2c3ccc(Br)cc34)c6c5
(2)InChI: InChI=1/C25H12Br4/c26-13-1-5-17-18-6-2-14(27)10-22(18)25(21(17)9-13)23-11-15(28)3-7-19(23)20-8-4-16(29)12-24(20)25/h1-12H
(3)InChIKey: MASXXNUEJVMYML-UHFFFAOYAH