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[1,1'-Biphenyl]-4,4'-dicarbonyl dichloride

Also known as: Biphenyl-4,4'-dicarbonyl dichloride, 4,4'-Biphenyldicarbonyl dichloride, 4,4'-Bibenzoyl chloride, 4,4'-Diphenyldicarbonyl chloride, 4,4'-Biphenyldicarboxylic acid dichloride, 1,1'-Biphenyl-4,4'-bis(carbonyl chloride)

[1,1'-Biphenyl]-4,4'-dicarbonyl dichloride (CAS 2351-37-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H8Cl2O2 and a molecular weight of 279.118 g/mol. Key properties include a melting point of 189ºC, a boiling point of 407.8±38.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 224.1±22.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2351-37-3
Jingsj CID
J-36220-9
Molecular Formula
C14H8Cl2O2
Molecular Weight
279.118 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Melting Point189ºC
Boiling Point407.8±38.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point224.1±22.4 °C
Exact Mass277.990143
PSA34.14000
LogP3.74
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.603

Customs & Trade Information

HS Code2917399090
Summary2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride?

The CAS number of [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride is 2351-37-3.

What are the molecular formula and molecular weight of [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride?

[1,1'-Biphenyl]-4,4'-dicarbonyl dichloride has molecular formula C14H8Cl2O2 and molecular weight 279.118 g/mol.

What are the upstream and downstream products of [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride?

For [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride, Upstream Products: Biphenyl-4,4'-dicarboxylic acid, Oxalyl chloride, Terephthaloyl chloride; Downstream Products: Diethyl 4,4'-biphenyldicarboxylate, 4,4'-Biphenyldicarboxaldehyde, 4,4'-Biphenyldiyldimethanol.

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

Last updated:

How to cite: Jingsj. "[1,1'-Biphenyl]-4,4'-dicarbonyl dichloride (CAS 2351-37-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36220-9 (accessed 2026-11-09).

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