2-Iodo-3,4-dimethylbenzoic acid

Also known as: 3,4-dimethyl-2-iodobenzoic acid, 2-Iodo-3,4-dimethylbenzoicacid

2-Iodo-3,4-dimethylbenzoic acid (CAS 129833-31-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9IO2 and a molecular weight of 276.07100 g/mol. Key properties include a melting point of 137-138ºC, a boiling point of 350.2ºC at 760 mmHg, a density of 1.763 and a flash point of 165.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 129833-31-4
Jingsj CID: J-1439763-8
Molecular Formula: C₉H₉IO₂
Molecular Weight: 276.07100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	137-138ºC
Boiling Point	350.2ºC at 760 mmHg
Density	1.763
Flash Point	165.6ºC
Exact Mass	275.96500
PSA	37.30000
LogP	2.60620

Customs & Trade Information

HS Code	2916399090
Summary	2916399090 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 2-Iodo-3,4-dimethylbenzoic acid?

The CAS number of 2-Iodo-3,4-dimethylbenzoic acid is 129833-31-4.

What are the molecular formula and molecular weight of 2-Iodo-3,4-dimethylbenzoic acid?

2-Iodo-3,4-dimethylbenzoic acid has molecular formula C9H9IO2 and molecular weight 276.07100 g/mol.

What are the upstream and downstream products of 2-Iodo-3,4-dimethylbenzoic acid?

For 2-Iodo-3,4-dimethylbenzoic acid, Upstream Products: 2-Amino-3,4-dimethylbenzoic acid, 2,3-Dimethylaniline, 3,4-Dimethylbenzoic acid; Downstream Products: Vadimezan, 2-(2-Carboxymethylphenoxy)-3,4-dimethylbenzoic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Iodo-3,4-dimethylbenzoic acid (CAS 129833-31-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439763-8 (accessed 2026-11-09).

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