5-Hydroxynicotinic acid
Also known as: 5-Hydroxy-3-pyridinecarboxylic acid, 5-Hydroxypyridine-3-carboxylic acid, 3-Carboxy-5-hydroxypyridine, 5-Hydroxy-nicotinic acid, 5-Hydroxy-nicotinsaeure
5-Hydroxynicotinic acid (CAS 27828-71-3) is a compound in the Organic Acids 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 299 °C, 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. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, 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.
- 27828-71-3
- Jingsj CID
- J-26069-5
- Molecular Formula
- C6H5NO3
- Molecular Weight
- 139.109 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 299 °C |
|---|---|
| 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 | 0.40 |
| Vapor Pressure | 0.0±1.4 mmHg at 25°C |
| Refractive Index | 1.626 |
| Storage Conditions | Keep Cold |
GHS Safety & Compliance
- H315 — Causes skin irritation
- 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 5-Hydroxynicotinic acid?
The CAS number of 5-Hydroxynicotinic acid is 27828-71-3.
What are the molecular formula and molecular weight of 5-Hydroxynicotinic acid?
5-Hydroxynicotinic acid has molecular formula C6H5NO3 and molecular weight 139.109 g/mol.
Is 5-Hydroxynicotinic acid hazardous?
5-Hydroxynicotinic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 5-Hydroxynicotinic acid?
For 5-Hydroxynicotinic acid, Upstream Products: 5-Bromonicotinic acid, 5-Aminonicotinic acid, Methyl 5-aminonicotinate; Downstream Products: Methyl 5-hydroxynicotinate, 5-Hydroxy-6-nitronicotinic acid, Ethyl 5-hydroxynicotinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Hydroxynicotinic acid (CAS 27828-71-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26069-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.