2,2',4,4'-Tetrachlorobiphenyl

Also known as: PCB 47, 2,4,2',4'-Tetrachlorobiphenyl, 2,2',4,4'-Tetrachloro-1,1'-biphenyl, 2,4-dichloro-1-(2,4-dichlorophenyl)benzene, BZ NO 47, Tetrachlorobiphenyl no. 47, 2,2',4,4'-Tetrachlorodiphenyl

2,2',4,4'-Tetrachlorobiphenyl (CAS 2437-79-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H6Cl4 and a molecular weight of 291.988 g/mol. Key properties include a melting point of 83°C, a boiling point of 342.7±37.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 160.3±23.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2437-79-8
Jingsj CID: J-11122-8
Molecular Formula: C₁₂H₆Cl₄
Molecular Weight: 291.988 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	83°C
Boiling Point	342.7±37.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	160.3±23.9 °C
Exact Mass	289.922363
LogP	6.10
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.612
Storage Conditions	-20°C

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',4,4'-Tetrachlorobiphenyl?

The CAS number of 2,2',4,4'-Tetrachlorobiphenyl is 2437-79-8.

What are the molecular formula and molecular weight of 2,2',4,4'-Tetrachlorobiphenyl?

2,2',4,4'-Tetrachlorobiphenyl has molecular formula C12H6Cl4 and molecular weight 291.988 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',4,4'-Tetrachlorobiphenyl (CAS 2437-79-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11122-8 (accessed 2026-11-09).

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