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3,4-Diiodobenzoic acid

Also known as: Benzoic acid, 3,4-diiodo-, 3,4-Diiodobenzoicacid

3,4-Diiodobenzoic acid (CAS 35674-20-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4I2O2 and a molecular weight of 373.914 g/mol. Key properties include a boiling point of 380.7±37.0 °C at 760 mmHg, a density of 2.6±0.1 g/cm3 and a flash point of 184.0±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35674-20-5
Jingsj CID
J-1448067-2
Molecular Formula
C7H4I2O2
Molecular Weight
373.914 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point380.7±37.0 °C at 760 mmHg
Density2.6±0.1 g/cm3
Flash Point184.0±26.5 °C
Exact Mass373.830048
PSA37.30000
LogP4.14
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.741

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,4-Diiodobenzoic acid?

The CAS number of 3,4-Diiodobenzoic acid is 35674-20-5.

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

3,4-Diiodobenzoic acid has molecular formula C7H4I2O2 and molecular weight 373.914 g/mol.

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

For 3,4-Diiodobenzoic acid, Upstream Products: 4-Iodobenzoic acid, 4-Amino-3-iodobenzoic acid, 4-aminobenzoic acid.

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

Last updated:

How to cite: Jingsj. "3,4-Diiodobenzoic acid (CAS 35674-20-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1448067-2 (accessed 2026-11-09).

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