2-Hydroxy-4-iodobenzoic acid

2-羟基-4-碘苯甲酸

Also known as: 4-iodosalicylic acid, Benzoic acid, 2-hydroxy-4-iodo-, 2-Hydroxy-4-iodobenzoic acid 97%

2-Hydroxy-4-iodobenzoic acid (CAS 16870-28-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5IO3 and a molecular weight of 264.017 g/mol. It is also known as 4-iodosalicylic acid, Benzoic acid, 2-hydroxy-4-iodo- and 2-Hydroxy-4-iodobenzoic acid 97%. Key properties include a melting point of 230ºC, a boiling point of 362.6±37.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 173.1±26.5 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
16870-28-3
Jingsj CID
J-1174276-8
Molecular Formula
C7H5IO3
Chinese Name
2-羟基-4-碘苯甲酸
Molecular Weight
264.017 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point230ºC
Boiling Point362.6±37.0 °C at 760 mmHg
Density2.2±0.1 g/cm3
Flash Point173.1±26.5 °C

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-Hydroxy-4-iodobenzoic acid?

The CAS number of 2-Hydroxy-4-iodobenzoic acid is 16870-28-3.

What are the molecular formula and molecular weight of 2-Hydroxy-4-iodobenzoic acid?

2-Hydroxy-4-iodobenzoic acid has molecular formula C7H5IO3 and molecular weight 264.017 g/mol.

Is 2-Hydroxy-4-iodobenzoic acid hazardous?

2-Hydroxy-4-iodobenzoic acid has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-4-iodobenzoic acid (CAS 16870-28-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1174276-8 (accessed 2026-10-22).

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