6-Hydroxy-5-nitronicotinic acid
Also known as: 2-Hydroxy-3-nitropyridine-5-carboxylic acid, 5-Carboxy-3-nitro-2(1H)-pyridinone, 6-Hydroxy-5-nitropyridine-3-carboxylic acid, 3-Pyridinecarboxylic acid, 6-hydroxy-5-nitro-, 2-Hydroxy-3-nitro-5-pyridinecarboxylic acid, 5-Nitro-6-oxo-1,6-dihydropyridine-3-carboxylic acid, NSC 52204
6-Hydroxy-5-nitronicotinic acid (CAS 6635-31-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H4N2O5 and a molecular weight of 184.106 g/mol. Key properties include a melting point of 269-271ºC, a boiling point of 463.4±45.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 234.1±28.7 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6635-31-0
- Jingsj CID
- J-1410448-4
- Molecular Formula
- C6H4N2O5
- Molecular Weight
- 184.106 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 269-271ºC |
|---|---|
| Boiling Point | 463.4±45.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 234.1±28.7 °C |
| Exact Mass | 184.012024 |
| PSA | 116.24000 |
| LogP | -0.43 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.677 |
| Storage Conditions | Keep Cold |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 6-Hydroxy-5-nitronicotinic acid?
The CAS number of 6-Hydroxy-5-nitronicotinic acid is 6635-31-0.
What are the molecular formula and molecular weight of 6-Hydroxy-5-nitronicotinic acid?
6-Hydroxy-5-nitronicotinic acid has molecular formula C6H4N2O5 and molecular weight 184.106 g/mol.
Is 6-Hydroxy-5-nitronicotinic acid hazardous?
6-Hydroxy-5-nitronicotinic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 6-Hydroxy-5-nitronicotinic acid?
For 6-Hydroxy-5-nitronicotinic acid, Upstream Products: 6-Hydroxynicotinic acid; Downstream Products: Methyl 5-amino-6-hydroxypyridine-3-carboxylate, Methyl 6-chloro-5-nitronicotinate, Methyl 6-amino-5-nitronicotinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "6-Hydroxy-5-nitronicotinic acid (CAS 6635-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1410448-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.