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4,4'-Biphenyldicarboxaldehyde

Also known as: [1,1'-Biphenyl]-4,4'-dicarboxaldehyde, Biphenyl-4,4'-dicarboxaldehyde, Biphenyl-4,4'-dicarbaldehyde, 4,4'-Diformylbiphenyl, 4,4'-Bisbenzaldehyde, 4,4'-Diphenyl dialdehyde, 4-(4-formylphenyl)benzaldehyde, 1,1'-Biphenyl-4,4'-biscarbaldehyde, MFCD00016714

4,4'-Biphenyldicarboxaldehyde (CAS 66-98-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H10O2 and a molecular weight of 210.228 g/mol. Key properties include a melting point of 148 °C, a boiling point of 391.7±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 146.8±22.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66-98-8
Jingsj CID
J-43694-2
Molecular Formula
C14H10O2
Molecular Weight
210.228 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point148 °C
Boiling Point391.7±35.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point146.8±22.9 °C
Exact Mass210.068085
PSA34.14000
LogP2.60
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.643
Storage ConditionsRefrigerator

Customs & Trade Information

HS Code2912299000
Summary2912299000. other cyclic aldehydes without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Biphenyldicarboxaldehyde?

The CAS number of 4,4'-Biphenyldicarboxaldehyde is 66-98-8.

What are the molecular formula and molecular weight of 4,4'-Biphenyldicarboxaldehyde?

4,4'-Biphenyldicarboxaldehyde has molecular formula C14H10O2 and molecular weight 210.228 g/mol.

What are the upstream and downstream products of 4,4'-Biphenyldicarboxaldehyde?

For 4,4'-Biphenyldicarboxaldehyde, Upstream Products: BI-P-TOLYL, 4-Bromobenzaldehyde, 4,4'-Biphenyldicarbonitrile.

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

Last updated:

How to cite: Jingsj. "4,4'-Biphenyldicarboxaldehyde (CAS 66-98-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43694-2 (accessed 2026-11-09).

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