2,2',3,3',5,5',6,6'-Octachlorobiphenyl

Also known as: 2,2',3,3',5,5',6,6'-Octachloro-1,1'-biphenyl, 2,3,5,6,2',3',5',6'-Octachlorobiphenyl, BZNO 202, PCB 202, 1,1'-Biphenyl, 2,2',3,3',5,5',6,6'-octachloro-, 1,2,4,5-tetrachloro-3-(2,3,5,6-tetrachlorophenyl)benzene

2,2',3,3',5,5',6,6'-Octachlorobiphenyl (CAS 2136-99-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H2Cl8 and a molecular weight of 429.76800 g/mol. Key properties include a melting point of 161°C, a boiling point of 420.1ºC at 760 mmHg, a density of 1.716 g/cm3 and a flash point of 204.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2136-99-4
Jingsj CID: J-1322584-8
Molecular Formula: C₁₂H₂Cl₈
Molecular Weight: 429.76800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	161°C
Boiling Point	420.1ºC at 760 mmHg
Density	1.716 g/cm3
Flash Point	204.7ºC
Exact Mass	425.76600
LogP	8.58080
Vapor Pressure	7.04E-07mmHg at 25°C
Refractive Index	1.638

Customs & Trade Information

HS Code	2903999090
Summary	2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,2',3,3',5,5',6,6'-Octachlorobiphenyl?

The CAS number of 2,2',3,3',5,5',6,6'-Octachlorobiphenyl is 2136-99-4.

What are the molecular formula and molecular weight of 2,2',3,3',5,5',6,6'-Octachlorobiphenyl?

2,2',3,3',5,5',6,6'-Octachlorobiphenyl has molecular formula C12H2Cl8 and molecular weight 429.76800 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "2,2',3,3',5,5',6,6'-Octachlorobiphenyl (CAS 2136-99-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1322584-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.