3,5-Diiodosalicylic acid
3,5-二碘水杨酸
Also known as: 2-Hydroxy-3,5-diiodobenzoic acid, 2-Hydroxy-3,5-diiodobenzenecarboxylic acid, 2-Hydroxy-3,5-diiodobenzoate, 3,5-Diiodo-2-hydroxybenzoic acid, 3,5-Diiodosalicylic acid, Diiodosalicylic acid, Sanoform, Diosal, DISA
3,5-Diiodosalicylic acid (CAS 133-91-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4I2O3 and a molecular weight of 389.914 g/mol. It is also known as 2-Hydroxy-3,5-diiodobenzoic acid, 2-Hydroxy-3,5-diiodobenzenecarboxylic acid and 2-Hydroxy-3,5-diiodobenzoate. Key properties include a melting point of 220-230 °C (dec.)(lit.), a boiling point of 380.8±42.0 °C at 760 mmHg, a density of 2.7±0.1 g/cm3 and a flash point of 184.1±27.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 133-91-5
- Jingsj CID
- J-1418403-1
- Molecular Formula
- C7H4I2O3
- Chinese Name
- 3,5-二碘水杨酸
- Molecular Weight
- 389.914 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 220-230 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 380.8±42.0 °C at 760 mmHg |
| Density | 2.7±0.1 g/cm3 |
| Flash Point | 184.1±27.9 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 3,5-Diiodosalicylic acid?
The CAS number of 3,5-Diiodosalicylic acid is 133-91-5.
What are the molecular formula and molecular weight of 3,5-Diiodosalicylic acid?
3,5-Diiodosalicylic acid has molecular formula C7H4I2O3 and molecular weight 389.914 g/mol.
Is 3,5-Diiodosalicylic acid hazardous?
3,5-Diiodosalicylic acid has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,5-Diiodosalicylic acid (CAS 133-91-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1418403-1 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.