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2,3,5-Trichlorobiphenyl

Also known as: PCB 23, 1,1'-Biphenyl, 2,3,5-trichloro-, 1,2,5-trichloro-3-phenylbenzene, 2,3,5-TCB

2,3,5-Trichlorobiphenyl (CAS 55720-44-0) 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. Key properties include a melting point of 40.0-40.5ºC, a boiling point of 334.8ºC at 760 mmHg, a density of 1.351 g/cm3 and a flash point of 230ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55720-44-0
Jingsj CID
J-1336696-4
Molecular Formula
C12H7Cl3
Molecular Weight
257.54300 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40.0-40.5ºC
Boiling Point334.8ºC at 760 mmHg
Density1.351 g/cm3
Flash Point230ºC
Exact Mass255.96100
LogP5.31380
Refractive Index1.603

Frequently Asked Questions

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

The CAS number of 2,3,5-Trichlorobiphenyl is 55720-44-0.

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 such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,3,5-Trichlorobiphenyl (CAS 55720-44-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336696-4 (accessed 2026-11-07).

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