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6-Hydroxypyridine-2-carboxylic acid

Also known as: 6-Hydroxypicolinic acid, 6-Oxo-1,6-dihydropyridine-2-carboxylic acid, 2-Hydroxypyridine-6-carboxylic acid, 6-Carboxy-2(1H)-pyridinone, 2-Pyridinecarboxylic acid, 1,6-dihydro-6-oxo-, 6-Hydroxy-2-pyridinecarboxylic acid, 6-Oxo-1,6-dihydropyridine-2-carboxylic acid

6-Hydroxypyridine-2-carboxylic acid (CAS 19621-92-2) 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 270 °C (dec.)(lit.), a boiling point of 493.0±30.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 251.9±24.6 °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.
19621-92-2
Jingsj CID
J-6473-3
Molecular Formula
C6H5NO3
Molecular Weight
139.109 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point270 °C (dec.)(lit.)
Boiling Point493.0±30.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point251.9±24.6 °C
Exact Mass139.026947
PSA70.42000
LogP-1.13
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.626

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933399090
Summary2933399090. 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-Hydroxypyridine-2-carboxylic acid?

The CAS number of 6-Hydroxypyridine-2-carboxylic acid is 19621-92-2.

What are the molecular formula and molecular weight of 6-Hydroxypyridine-2-carboxylic acid?

6-Hydroxypyridine-2-carboxylic acid has molecular formula C6H5NO3 and molecular weight 139.109 g/mol.

Is 6-Hydroxypyridine-2-carboxylic acid hazardous?

6-Hydroxypyridine-2-carboxylic 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 6-Hydroxypyridine-2-carboxylic acid?

For 6-Hydroxypyridine-2-carboxylic acid, Upstream Products: 2-Picolinic acid, 2-Oxo-2H-pyran-6-carboxylic acid, Dipicolinic acid; Downstream Products: (6-Methoxypyridin-2-yl)methanol, 2-(Bromomethyl)-6-methoxypyridine, 6-(Hydroxymethyl)pyridin-2(1H)-one.

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-Hydroxypyridine-2-carboxylic acid (CAS 19621-92-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6473-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.