This chemical is called  tert-Butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl carbonate, and it can also be named as Carbonic acid, 1,1-dimethylethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl ester. With the molecular formula of C₁₇H₂₅BO₅, its molecular weight is 320.19. The CAS registry number of this chemical is 480438-75-3.

Other characteristics of the tert-Butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl carbonate can be summarised as followings: (1)#H bond acceptors: 5; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 5; (4)Polar Surface Area: 53.99 Å²; (5)Index of Refraction: 1.494; (6)Molar Refractivity: 86.2 cm³; (7)Molar Volume: 295.9 cm³; (8)Polarizability: 34.17×10^-24cm³; (9)Surface Tension: 35.5 dyne/cm; (10)Density: 1.08 g/cm³; (11)Flash Point: 197.8 °C; (12)Enthalpy of Vaporization: 65.48 kJ/mol; (13)Boiling Point: 403.5 °C at 760 mmHg; (14)Vapour Pressure: 1.01E-06 mmHg at 25°C. 

You can still convert the following datas into molecular structure:
1.SMILES: O=C(OC(C)(C)C)Oc2ccc(B1OC(C)(C)C(O1)(C)C)cc2
2.InChI: InChI=1/C17H25BO5/c1-15(2,3)21-14(19)20-13-10-8-12(9-11-13)18-22-16(4,5)17(6,7)23-18/h8-11H,1-7H3
3.InChIKey: JUKMJUAVZLWOOZ-UHFFFAOYAF