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2,4'-Dichloro-1,1'-biphenyl

Also known as: 2,4'-Dichlorobiphenyl, PCB 8, 2,4'-PCB, 1,1'-Biphenyl, 2,4'-dichloro-, 1-chloro-2-(4-chlorophenyl)benzene

2,4'-Dichloro-1,1'-biphenyl (CAS 34883-43-7) 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 223.098 g/mol. Key properties include a melting point of 46°C, a boiling point of 303.3±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 133.6±14.5 °C. It is classified under GHS with signal word Warning and hazard statements H373 — May cause damage to organs through prolonged exposure and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34883-43-7
Jingsj CID
J-1266-8
Molecular Formula
C12H8Cl2
Molecular Weight
223.098 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point46°C
Boiling Point303.3±17.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point133.6±14.5 °C
Exact Mass222.000305
LogP5.02
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.594
Storage Conditions2-8°C

GHS Safety & Compliance

Health Hazard / Environmental HazardSignal word: Warning
  • H373 — May cause damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2903999010
Summary2903999010 2,3,3',4,5,6-hexachloro-1,1'-biphenyl。supervision conditions:89(articles on the list of prohibited export goods,articles on the list of prohibited import goods)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:5.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4'-Dichloro-1,1'-biphenyl?

The CAS number of 2,4'-Dichloro-1,1'-biphenyl is 34883-43-7.

What are the molecular formula and molecular weight of 2,4'-Dichloro-1,1'-biphenyl?

2,4'-Dichloro-1,1'-biphenyl has molecular formula C12H8Cl2 and molecular weight 223.098 g/mol.

Is 2,4'-Dichloro-1,1'-biphenyl hazardous?

2,4'-Dichloro-1,1'-biphenyl has GHS signal word Warning and hazard statements H373 — May cause damage to organs through prolonged exposure; H410 — Very toxic to aquatic life with long lasting effects.

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

Last updated:

How to cite: Jingsj. "2,4'-Dichloro-1,1'-biphenyl (CAS 34883-43-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1266-8 (accessed 2026-11-09).

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