2,3',5-Trichlorobiphenyl

2,3',5-三氯联苯

Also known as: 2,3',5-Trichlorobiphenyl, PCB 26, 2,3',5-PCB, 2,5,3'-CB, 1,4-dichloro-2-(3-chlorophenyl)benzene, BZNO 26, 2,3',5-Trichloro-1,1'-biphenyl

2,3',5-Trichlorobiphenyl (CAS 38444-81-4) 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 PCB 26, 2,3',5-PCB and 2,5,3'-CB. Key properties include a melting point of 40.5°C, a boiling point of 334.7ºC at 760 mmHg, a density of 1.351 g/cm3 and a flash point of 229.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
38444-81-4
Jingsj CID
J-1992885-2
Molecular Formula
C12H7Cl3
Chinese Name
2,3',5-三氯联苯
Molecular Weight
257.54300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40.5°C
Boiling Point334.7ºC at 760 mmHg
Density1.351 g/cm3
Flash Point229.9ºC

Frequently Asked Questions

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

The CAS number of 2,3',5-Trichlorobiphenyl is 38444-81-4.

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

2,3',5-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',5-Trichlorobiphenyl (CAS 38444-81-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992885-2 (accessed 2026-10-22).

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