2-Hydroxy-4-iodobenzoic acid
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. 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. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16870-28-3
- Jingsj CID
- J-1174276-0
- Molecular Formula
- C7H5IO3
- Molecular Weight
- 264.017 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 230ºC |
|---|---|
| Boiling Point | 362.6±37.0 °C at 760 mmHg |
| Density | 2.2±0.1 g/cm3 |
| Flash Point | 173.1±26.5 °C |
| Exact Mass | 263.928314 |
| PSA | 57.53000 |
| LogP | 3.60 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.712 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0% |
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 and hazard statements H301 — Toxic if swallowed; H318 — Causes serious eye damage.
What are the upstream and downstream products of 2-Hydroxy-4-iodobenzoic acid?
For 2-Hydroxy-4-iodobenzoic acid, Upstream Products: 4-Aminosalicylic acid, Methyl 4-iodosalicylate, 2-Hydroxy-4-iodobenzaldehyde; Downstream Products: 6-Iodo-2(3H)-benzoxazolone, (4-iodo-2-methoxyphenyl)methanol, Methyl 4-iodo-2-methoxybenzoate.
Data compiled from public chemical databases such as PubChem 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-1174276-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.