4,4'-Oxybisbenzoic acid

4,4'-二苯醚二甲酸

Also known as: 4,4'-Dicarboxydiphenyl Ether, 4,4'-Dicarboxylic Diphenyl Ether, 4,4'-Oxydibenzoic acid, 4-(4-carboxyphenoxy)benzoic acid, Diphenyl ether 4,4'-dicarboxylic acid, Benzoic acid, 4,4'-oxybis-, MFCD00013988

4,4'-Oxybisbenzoic acid (CAS 2215-89-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H10O5 and a molecular weight of 258.226 g/mol. It is also known as 4,4'-Dicarboxydiphenyl Ether, 4,4'-Dicarboxylic Diphenyl Ether and 4,4'-Oxydibenzoic acid. Key properties include a melting point of 329 °C, a boiling point of 473.7±30.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 184.1±18.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2215-89-6
Jingsj CID
J-1375011-8
Molecular Formula
C14H10O5
Chinese Name
4,4'-二苯醚二甲酸
Molecular Weight
258.226 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point329 °C
Boiling Point473.7±30.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point184.1±18.1 °C
Exact Mass258.052826
PSA83.83000
LogP2.21
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.638

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Oxybisbenzoic acid?

The CAS number of 4,4'-Oxybisbenzoic acid is 2215-89-6.

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

4,4'-Oxybisbenzoic acid has molecular formula C14H10O5 and molecular weight 258.226 g/mol.

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

For 4,4'-Oxybisbenzoic acid, Upstream Products: 4,4'-Dibromodiphenyl ether, 4-Tolyl ether, 4-Hydroxybenzonitrile; Downstream Products: 4,4'-Oxybis(benzoyl chloride), Bis(4-cyanophenyl) ether, Dimethyl 4,4'-oxydibenzoate.

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

Last updated:

How to cite: Jingsj. "4,4'-Oxybisbenzoic acid (CAS 2215-89-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1375011-8 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.