3,3',4,4'-Biphenyltetracarboxylic acid

Also known as: 1,1'-biphenyl-2,3',3,4'-tetracarboxylic acid, 3,4,3',4'-biphenyltetracarboxylic acid, 4-(3,4-dicarboxyphenyl)phthalic acid, Biphenyl-3,3',4,4'-tetracarboxylic acid, biphenyl-3,3′,4,4′-tetracarboxylic acid, diphenyl-3,3',4,4'-tetracarboxylic acid, [1,1'-Biphenyl]-3,3',4,4'-tetracarboxylic acid

3,3',4,4'-Biphenyltetracarboxylic acid (CAS 22803-05-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H10O8 and a molecular weight of 330.246 g/mol. Key properties include a melting point of >300ºC, a boiling point of 673.3±55.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 375.0±28.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 22803-05-0
Jingsj CID: J-1315556-1
Molecular Formula: C₁₆H₁₀O₈
Molecular Weight: 330.246 g/mol
Category: Organic Acids
Last updated: 11/3/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	>300ºC
Boiling Point	673.3±55.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	375.0±28.0 °C
Exact Mass	330.037567
PSA	149.20000
LogP	1.72
Vapor Pressure	0.0±2.2 mmHg at 25°C
Refractive Index	1.693

Customs & Trade Information

HS Code	2917399090
Summary	2917399090 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 3,3',4,4'-Biphenyltetracarboxylic acid?

The CAS number of 3,3',4,4'-Biphenyltetracarboxylic acid is 22803-05-0.

What are the molecular formula and molecular weight of 3,3',4,4'-Biphenyltetracarboxylic acid?

3,3',4,4'-Biphenyltetracarboxylic acid has molecular formula C16H10O8 and molecular weight 330.246 g/mol.

What are the upstream and downstream products of 3,3',4,4'-Biphenyltetracarboxylic acid?

For 3,3',4,4'-Biphenyltetracarboxylic acid, Upstream Products: 4-Bromophthalic anhydride, Dimethyl 4-bromophthalate, Tetramethyl 3,3',4,4'-biphenyltetracarboxylate; Downstream Products: 3,3',4,4'-Biphenyltetracarboxylic dianhydride.

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

Last updated: 11/3/2026

How to cite: Jingsj. "3,3',4,4'-Biphenyltetracarboxylic acid (CAS 22803-05-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1315556-1 (accessed 2026-11-09).

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