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2,5-Dichlorobiphenyl

Also known as: PCB 9, BZNO 9, 2,5-PCB, PCB NO 9, BALLSCHMITER NO 9, 1,1'-Biphenyl,2,5-dichloro, 1,4-dichloro-2-phenylbenzene, 2,5-Dichlor-biphenyl, 2,5-Dichloro-1,1'-biphenyl, 2,5-chlorobiphenyl, 2,5-dichloro-biphenyl, 3,6-Dichlorobiphenyl, Biphenyl, 2,5-dichloro-

2,5-Dichlorobiphenyl (CAS 34883-39-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8Cl2 and a molecular weight of 223.09800 g/mol. Key properties include a melting point of 22.5°C, a boiling point of 303.5ºC at 760 mmHg, a density of 1.249 g/cm3 and a flash point of 133.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34883-39-1
Jingsj CID
J-1992877-9
Molecular Formula
C12H8Cl2
Molecular Weight
223.09800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point22.5°C
Boiling Point303.5ºC at 760 mmHg
Density1.249 g/cm3
Flash Point133.7ºC
Exact Mass222.00000
LogP4.66040
Refractive Index1.594

Frequently Asked Questions

What is the CAS number of 2,5-Dichlorobiphenyl?

The CAS number of 2,5-Dichlorobiphenyl is 34883-39-1.

What are the molecular formula and molecular weight of 2,5-Dichlorobiphenyl?

2,5-Dichlorobiphenyl has molecular formula C12H8Cl2 and molecular weight 223.09800 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. "2,5-Dichlorobiphenyl (CAS 34883-39-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992877-9 (accessed 2026-11-09).

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