2,3,4'-Trichlorobiphenyl

2,3,4'-三氯联苯

Also known as: 1,2-dichloro-3-(4-chlorophenyl)benzene, PCB 22, PCB No. 22, BZNo 22, 2,3,4'-Trichlorobiphenyl (PCB 22)

2,3,4'-Trichlorobiphenyl (CAS 38444-85-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H7Cl3 and a molecular weight of 257.54300 g/mol. It is also known as 1,2-dichloro-3-(4-chlorophenyl)benzene, PCB 22 and PCB No. 22. Key properties include a melting point of 73°C, a boiling point of 335.6ºC at 760 mmHg, a density of 1.351 g/cm3 and a flash point of 230.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
38444-85-8
Jingsj CID
J-977784-2
Molecular Formula
C12H7Cl3
Chinese Name
2,3,4'-三氯联苯
Molecular Weight
257.54300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point73°C
Boiling Point335.6ºC at 760 mmHg
Density1.351 g/cm3
Flash Point230.7ºC

Frequently Asked Questions

What is the CAS number of 2,3,4'-Trichlorobiphenyl?

The CAS number of 2,3,4'-Trichlorobiphenyl is 38444-85-8.

What are the molecular formula and molecular weight of 2,3,4'-Trichlorobiphenyl?

2,3,4'-Trichlorobiphenyl has molecular formula C12H7Cl3 and molecular weight 257.54300 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'-Trichlorobiphenyl (CAS 38444-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-977784-2 (accessed 2026-10-22).

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