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4-(4-Iodophenoxy)benzoic acid

Also known as: 4-(4-Iodo-phenoxy)-benzoic acid, Benzoic acid, 4-(4-iodophenoxy)-, 4-(4-Iodophenoxy)benzoic acid

4-(4-Iodophenoxy)benzoic acid (CAS 21120-69-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H9IO3 and a molecular weight of 340.11300 g/mol. Key properties include a boiling point of 422.2ºC at 760 mmHg, a density of 1.747g/cm3 and a flash point of 209.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21120-69-4
Jingsj CID
J-1439596-1
Molecular Formula
C13H9IO3
Molecular Weight
340.11300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point422.2ºC at 760 mmHg
Density1.747g/cm3
Flash Point209.1ºC
Exact Mass339.96000
PSA46.53000
LogP3.78170
Vapor Pressure6.98E-08mmHg at 25°C
Refractive Index1.668

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-Iodophenoxy)benzoic acid?

The CAS number of 4-(4-Iodophenoxy)benzoic acid is 21120-69-4.

What are the molecular formula and molecular weight of 4-(4-Iodophenoxy)benzoic acid?

4-(4-Iodophenoxy)benzoic acid has molecular formula C13H9IO3 and molecular weight 340.11300 g/mol.

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-Iodophenoxy)benzoic acid (CAS 21120-69-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439596-1 (accessed 2026-11-09).

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