The 1,1'-Biphenyl,2,5-dichloro-, with the CAS registry number 34883-39-1, is also known as 2,5-Dichloro-1,1'-biphenyl. Its EINECS number is 215-648-1. This chemical's molecular formula is C₁₂H₈Cl₂ and molecular weight is 223.10. What's more, its systematic name is 2,5-Dichlorobiphenyl. 

Physical properties of 1,1'-Biphenyl,2,5-dichloro- are: (1)ACD/LogP: 4.95; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 4.95; (4)ACD/LogD (pH 7.4): 4.95; (5)ACD/BCF (pH 5.5): 3387.91; (6)ACD/BCF (pH 7.4): 3387.91; (7)ACD/KOC (pH 5.5): 11703.6; (8)ACD/KOC (pH 7.4): 11703.6; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 0 Å²; (13)Index of Refraction: 1.594; (14)Molar Refractivity: 60.63 cm³; (15)Molar Volume: 178.6 cm³; (16)Polarizability: 24.03×10^-24 cm³; (17)Surface Tension: 41.1 dyne/cm; (18)Density: 1.249 g/cm³; (19)Flash Point: 133.7 °C; (20)Enthalpy of Vaporization: 52.2 kJ/mol; (21)Boiling Point: 303.5 °C at 760 mmHg; (22)Vapour Pressure: 0.00167 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
The product is danger of cumulative effects. It is very toxic to aquatic organisms, and may cause long-term adverse effects in the aquatic environment. This product and its container must be disposed of in a safe way, and as hazardous waste. It should be avoided releasing to the environment. You must refer to special instructions/safety data sheet.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1=CC=C(C=C1)C2=C(C=CC(=C2)Cl)Cl
(2)InChI: InChI=1S/C12H8Cl2/c13-10-6-7-12(14)11(8-10)9-4-2-1-3-5-9/h1-8H
(3)InChIKey: KKQWHYGECTYFIA-UHFFFAOYSA-N