4-Chloro-2-hydroxybenzaldehyde
Also known as: 4-Chlorosalicylaldehyde, 2-Hydroxy-4-chlorobenzaldehyde, 3-Chlorosalicylaldehyde, 5-Chlorosalicylaldehyde, Benzaldehyde, 4-chloro-2-hydroxy-, 5-Chloro-2-formylphenol
4-Chloro-2-hydroxybenzaldehyde (CAS 2420-26-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5ClO2 and a molecular weight of 156.566 g/mol. Key properties include a melting point of 45.0 to 49.0 deg-C, a boiling point of 229.1±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 92.4±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2420-26-0
- Jingsj CID
- J-997090-5
- Molecular Formula
- C7H5ClO2
- Molecular Weight
- 156.566 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 45.0 to 49.0 deg-C |
|---|---|
| Boiling Point | 229.1±20.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 92.4±21.8 °C |
| Exact Mass | 155.997803 |
| PSA | 37.30000 |
| LogP | 2.50 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.632 |
Frequently Asked Questions
What is the CAS number of 4-Chloro-2-hydroxybenzaldehyde?
The CAS number of 4-Chloro-2-hydroxybenzaldehyde is 2420-26-0.
What are the molecular formula and molecular weight of 4-Chloro-2-hydroxybenzaldehyde?
4-Chloro-2-hydroxybenzaldehyde has molecular formula C7H5ClO2 and molecular weight 156.566 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Chloro-2-hydroxybenzaldehyde (CAS 2420-26-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-997090-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.