2,3,4,4',5,6-Hexachlorobiphenyl

2,3,4,4',5,6-六氯联苯

Also known as: 2,3,4,4',5,6-Hexachloro-1,1'-biphenyl, PCB 166, PCB No. 166, BZNo 166, 1,2,3,4,5-pentachloro-6-(4-chlorophenyl)benzene

2,3,4,4',5,6-Hexachlorobiphenyl (CAS 41411-63-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H4Cl6 and a molecular weight of 360.878 g/mol. It is also known as 2,3,4,4',5,6-Hexachloro-1,1'-biphenyl, PCB 166 and PCB No. 166. Key properties include a melting point of 163°C, a boiling point of 396.4±37.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 193.4±23.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
41411-63-6
Jingsj CID
J-1313429-3
Molecular Formula
C12H4Cl6
Chinese Name
2,3,4,4',5,6-六氯联苯
Molecular Weight
360.878 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point163°C
Boiling Point396.4±37.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point193.4±23.9 °C

Frequently Asked Questions

What is the CAS number of 2,3,4,4',5,6-Hexachlorobiphenyl?

The CAS number of 2,3,4,4',5,6-Hexachlorobiphenyl is 41411-63-6.

What are the molecular formula and molecular weight of 2,3,4,4',5,6-Hexachlorobiphenyl?

2,3,4,4',5,6-Hexachlorobiphenyl has molecular formula C12H4Cl6 and molecular weight 360.878 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3,4,4',5,6-Hexachlorobiphenyl (CAS 41411-63-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1313429-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.