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

2,2',3,3',4,5',6'-七氯联苯

Also known as: PCB 177, 2,2',3,3',4,5',6'-Heptachloro-1,1'-biphenyl, PCB No. 177, 1,1'-Biphenyl, 2,2',3,3',4,5',6'-heptachloro-

2,2',3,3',4,5',6'-Heptachlorobiphenyl (CAS 52663-70-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H3Cl7 and a molecular weight of 395.323 g/mol. It is also known as PCB 177, 2,2',3,3',4,5',6'-Heptachloro-1,1'-biphenyl and PCB No. 177. Key properties include a melting point of 131.31°C (estimate), a boiling point of 411.8±40.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 201.6±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
52663-70-4
Jingsj CID
J-862960-1
Molecular Formula
C12H3Cl7
Chinese Name
2,2',3,3',4,5',6'-七氯联苯
Molecular Weight
395.323 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point131.31°C (estimate)
Boiling Point411.8±40.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point201.6±24.7 °C

Frequently Asked Questions

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

The CAS number of 2,2',3,3',4,5',6'-Heptachlorobiphenyl is 52663-70-4.

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

2,2',3,3',4,5',6'-Heptachlorobiphenyl has molecular formula C12H3Cl7 and molecular weight 395.323 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2',3,3',4,5',6'-Heptachlorobiphenyl (CAS 52663-70-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-862960-1 (accessed 2026-10-22).

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