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4-Hydroxypyridine-2,6-dicarboxylic acid

Also known as: 2,6-Dicarboxy-4-hydroxypyridine, 4-Hydroxydipicolinic acid, Helidaminic acid, Chelidamic acid, 4-Hydroxypyridine-2,6-dicarboxylic acid dihydrate, 2,6-Pyridinedicarboxylic acid, 4-hydroxy-, 4-Oxo-1,4-dihydropyridine-2,6-dicarboxylic acid

4-Hydroxypyridine-2,6-dicarboxylic acid (CAS 499-51-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5NO5 and a molecular weight of 183.11800 g/mol. Key properties include a boiling point of 428.3ºC at 760 mmHg, a density of 1.726 g/cm3 and a flash point of 212.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
499-51-4
Jingsj CID
J-1494654-4
Molecular Formula
C7H5NO5
Molecular Weight
183.11800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point428.3ºC at 760 mmHg
Density1.726 g/cm3
Flash Point212.8ºC
Exact Mass183.01700
PSA107.72000
LogP0.18360

Frequently Asked Questions

What is the CAS number of 4-Hydroxypyridine-2,6-dicarboxylic acid?

The CAS number of 4-Hydroxypyridine-2,6-dicarboxylic acid is 499-51-4.

What are the molecular formula and molecular weight of 4-Hydroxypyridine-2,6-dicarboxylic acid?

4-Hydroxypyridine-2,6-dicarboxylic acid has molecular formula C7H5NO5 and molecular weight 183.11800 g/mol.

What are the upstream and downstream products of 4-Hydroxypyridine-2,6-dicarboxylic acid?

For 4-Hydroxypyridine-2,6-dicarboxylic acid, Upstream Products: Chelidonic acid, diethyl 2,4,6-trioxoheptanedioate, 4-Chloropyridine-2,6-dicarboxylic acid; Downstream Products: Diethyl 4-chloropyridine-2,6-dicarboxylate, 4-Chloropyridine-2,6-dicarboxylic acid, Dimethyl 4-chloropyridine-2,6-dicarboxylate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-Hydroxypyridine-2,6-dicarboxylic acid (CAS 499-51-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494654-4 (accessed 2026-11-09).

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