The CAS register number of 1,1'-Biphenyl,2,2',3,4,4',5,5'-heptachloro- is 35065-29-3. It also can be called as 2,2',3,4,4',5,5'-Heptachloro-1,1'-biphenyl and the IUPAC name about this chemical is 1,2,3,4-tetrachloro-5-(2,4,5-trichlorophenyl)benzene. The molecular formula about this chemical is C₁₂H₃Cl₇ and the molecular weight is 395.32.

Physical properties about 1,1'-Biphenyl,2,2',3,4,4',5,5'-heptachloro- are: (1)ACD/LogP: 7.16; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 7.16; (4)ACD/LogD (pH 7.4): 7.16; (5)ACD/BCF (pH 5.5): 163249.91; (6)ACD/BCF (pH 7.4): 163249.91; (7)ACD/KOC (pH 5.5): 187472.17; (8)ACD/KOC (pH 7.4): 187472.17; (9)#Freely Rotating Bonds: 1; (10)Index of Refraction: 1.632; (11)Molar Refractivity: 85.11 cm³; (12)Molar Volume: 238.3 cm³; (13)Polarizability: 33.74x10^-24cm³; (14)Surface Tension: 49.3 dyne/cm; (15)Density: 1.658 g/cm³; (16)Flash Point: 210.9 °C; (17)Enthalpy of Vaporization: 65.25 kJ/mol; (18)Boiling Point: 424.3 °C at 760 mmHg; (19)Vapour Pressure: 5.15E-07 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
This chemical is harmful and irritating to skin. It may cause damage to health and lung damage if swallowed. It is highly flammable and very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. There is danger of cumulative effects. Vapours may cause drowsiness and dizziness. This material and its container must be disposed of as hazardous waste and avoid release to the environment.  If you want to use this chemical, refer to special instructions and safety data sheets. If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. If you want to store it, keep away from sources of ignition.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1c(cc(Cl)c(Cl)c1Cl)c2cc(Cl)c(Cl)cc2Cl
(2)Std. InChI: InChI=1S/C12H3Cl7/c13-6-3-8(15)7(14)1-4(6)5-2-9(16)11(18)12(19)10(5)17/h1-3H
(3)Std. InChIKey: WBHQEUPUMONIKF-UHFFFAOYSA-N