3-Hydroxy-4-pyridinecarboxylic acid
Also known as: 3-Hydroxyisonicotinic acid, 3-Hydroxypyridine-4-carboxylic acid, 3-HYDROXY PYRIDINE-4-CARBOXYLIC ACID, 3-HYDROXY-4-PYRIDINECARBOXYLIC ACID, 3-HYDROXYISONICOTINIC ACID, 3-Hydroxy-4-carboxypyridine, 3-Hydroxy-4-pyridinecaboxylic acid, 3-Hydroxypyridin-4-carboxylic acid, 4-Pyridinecarboxylic acid, 3-hydroxy-, MFCD00234165
3-Hydroxy-4-pyridinecarboxylic acid (CAS 10128-71-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5NO3 and a molecular weight of 139.109 g/mol. Key properties include a melting point of 317-319(dec.), a boiling point of 519.3±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 267.9±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 10128-71-9
- Jingsj CID
- J-7666-4
- Molecular Formula
- C6H5NO3
- Molecular Weight
- 139.109 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 317-319(dec.) |
|---|---|
| Boiling Point | 519.3±35.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 267.9±25.9 °C |
| Exact Mass | 139.026947 |
| PSA | 70.42000 |
| LogP | 1.36 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.626 |
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-Hydroxy-4-pyridinecarboxylic acid?
The CAS number of 3-Hydroxy-4-pyridinecarboxylic acid is 10128-71-9.
What are the molecular formula and molecular weight of 3-Hydroxy-4-pyridinecarboxylic acid?
3-Hydroxy-4-pyridinecarboxylic acid has molecular formula C6H5NO3 and molecular weight 139.109 g/mol.
What are the upstream and downstream products of 3-Hydroxy-4-pyridinecarboxylic acid?
For 3-Hydroxy-4-pyridinecarboxylic acid, Upstream Products: 3-Aminoisonicotinic acid, 5-Ethoxyoxazole, Acrylic acid; Downstream Products: Furo[2,3-c]pyridin-3(2H)-one hydrochloride, ethyl 3-(2-ethoxy-2-oxoethoxy)isonicotinate, Methyl 3-chloroisonicotinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Hydroxy-4-pyridinecarboxylic acid (CAS 10128-71-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7666-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.