IUPAC Name: 2-(2-Chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenylimidazol-2-yl]-4,5-diphenylimidazole 
Following is the structure of 1H-Imidazole,2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl]-4,5-diphenyl- (CAS NO.7189-82-4):
                              
Empirical Formula: C₄₂H₂₈Cl₂N₄
Molecular Weight: 659.6045 g/mol
EINECS: 230-555-6
Index of Refraction: 1.675
Molar Refractivity: 198.57 cm³
Molar Volume: 527.9 cm³
Density: 1.24 g/cm³
Flash Point: 443.9 °C
Surface Tension: 49.9 dyne/cm
Enthalpy of Vaporization: 117.8 kJ/mol
Boiling Point: 810.3 °C at 760 mmHg
Vapour Pressure of 1H-Imidazole,2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl]-4,5-diphenyl- (CAS NO.7189-82-4): 2.58E-26 mmHg at 25 °C
Product Categories of 1H-Imidazole,2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl]-4,5-diphenyl- (CAS NO.7189-82-4): Industrial/Fine Chemicals; Functional Materials; Photopolymerization Initiators
Canonical SMILES: C1=CC=C(C=C1)C2=C(N(C(=N2)C3=CC=CC=C3Cl)C4(N=C(C(=N4)C5=CC=CC=C5)C6=CC=CC=C6)C7=CC=CC=C7Cl)C8=CC=CC=C8
InChI: InChI=1S/C42H28Cl2N4/c43-35-27-15-13-25-33(35)41-45-39(31-21-9-3-10-22-31)40(32-23-11-4-12-24-32)48(41)42(34-26-14-16-28-36(34)44)46-37(29-17-5-1-6-18-29)38(47-42)30-19-7-2-8-20-30/h1-28H
InChIKey: MHDULSOPQSUKBQ-UHFFFAOYSA-N

 1H-Imidazole,2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl]-4,5-diphenyl- , its cas register number is 7189-82-4. It also can be called 2-(2-Chlorophenyl)-1-(2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl)-4,5-diphenyl-1H-imidazole ; 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole ; and BCIM .