4-Hydroxy-3,5-diiodobenzaldehyde
3,5-二碘-4-羟基苯甲醛
Also known as: 3,5-Diiodo-4-hydroxybenzaldehyde, 4-Hydroxy-3,5-diiodobenzaldehyde, Levothyroxine Sodium Impurity F, 2,6-Diiodo-4-formylphenol, Benzaldehyde, 4-hydroxy-3,5-diiodo-, NSC 72943
4-Hydroxy-3,5-diiodobenzaldehyde (CAS 1948-40-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4I2O2 and a molecular weight of 373.914 g/mol. It is also known as 3,5-Diiodo-4-hydroxybenzaldehyde, Levothyroxine Sodium Impurity F and 2,6-Diiodo-4-formylphenol. Key properties include a melting point of 202-203°C, a boiling point of 284.1±40.0 °C at 760 mmHg, a density of 2.6±0.1 g/cm3 and a flash point of 125.6±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1948-40-9
- Jingsj CID
- J-26311-3
- Molecular Formula
- C7H4I2O2
- Chinese Name
- 3,5-二碘-4-羟基苯甲醛
- Molecular Weight
- 373.914 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 202-203°C |
|---|---|
| Boiling Point | 284.1±40.0 °C at 760 mmHg |
| Density | 2.6±0.1 g/cm3 |
| Flash Point | 125.6±27.3 °C |
| Exact Mass | 373.830048 |
| PSA | 37.30000 |
| LogP | 3.67 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.787 |
Customs & Trade Information
| HS Code | 2913000090 |
|---|---|
| Summary | HS: 2913000090 halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912 Educational tariff:17.0% Tax rebate rate:9.0% Regulatory conditions:none Most favored nation tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Hydroxy-3,5-diiodobenzaldehyde?
The CAS number of 4-Hydroxy-3,5-diiodobenzaldehyde is 1948-40-9.
What are the molecular formula and molecular weight of 4-Hydroxy-3,5-diiodobenzaldehyde?
4-Hydroxy-3,5-diiodobenzaldehyde has molecular formula C7H4I2O2 and molecular weight 373.914 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxy-3,5-diiodobenzaldehyde (CAS 1948-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26311-3 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.