2-Chloro-5-hydroxynicotinic acid
2-氯-5-羟基烟酸
Also known as: 2-Chloro-5-hydroxy-3-pyridinecarboxylic acid, 2-chloro-5-hydroxypyridine-3-carboxylic acid, 3-Pyridinecarboxylic acid, 2-chloro-5-hydroxy-, 2-Chlor-5-hydroxy-nicotinsaeure
2-Chloro-5-hydroxynicotinic acid (CAS 42959-40-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H4ClNO3 and a molecular weight of 173.554 g/mol. It is also known as 2-Chloro-5-hydroxy-3-pyridinecarboxylic acid, 2-chloro-5-hydroxypyridine-3-carboxylic acid and 3-Pyridinecarboxylic acid, 2-chloro-5-hydroxy-. Key properties include a boiling point of 530.1±50.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 274.4±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42959-40-0
- Jingsj CID
- J-1187350-5
- Molecular Formula
- C6H4ClNO3
- Chinese Name
- 2-氯-5-羟基烟酸
- Molecular Weight
- 173.554 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 530.1±50.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 274.4±30.1 °C |
Frequently Asked Questions
What is the CAS number of 2-Chloro-5-hydroxynicotinic acid?
The CAS number of 2-Chloro-5-hydroxynicotinic acid is 42959-40-0.
What are the molecular formula and molecular weight of 2-Chloro-5-hydroxynicotinic acid?
2-Chloro-5-hydroxynicotinic acid has molecular formula C6H4ClNO3 and molecular weight 173.554 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Chloro-5-hydroxynicotinic acid (CAS 42959-40-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1187350-5 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.