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4-Hydroxy-6-methylnicotinic acid

Also known as: 4-Hydroxy-6-methyl-3-pyridinecarboxylic acid, 6-Methyl-4-hydroxy-3-pyridinecarboxylic acid, 6-Methyl-4-oxo-1,4-dihydropyridine-3-carboxylic acid, 3-Pyridinecarboxylic acid, 4-hydroxy-6-methyl-, 4-Hydroxy-6-methyl-3-picolinic acid

4-Hydroxy-6-methylnicotinic acid (CAS 67367-33-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H7NO3 and a molecular weight of 153.135 g/mol. Key properties include a melting point of 263-265°C, a boiling point of 481.1±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 244.8±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
67367-33-3
Jingsj CID
J-48912-3
Molecular Formula
C7H7NO3
Molecular Weight
153.135 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point263-265°C
Boiling Point481.1±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point244.8±28.7 °C
Exact Mass153.042587
PSA70.42000
LogP-0.52
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.608

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 4-Hydroxy-6-methylnicotinic acid?

The CAS number of 4-Hydroxy-6-methylnicotinic acid is 67367-33-3.

What are the molecular formula and molecular weight of 4-Hydroxy-6-methylnicotinic acid?

4-Hydroxy-6-methylnicotinic acid has molecular formula C7H7NO3 and molecular weight 153.135 g/mol.

What are the upstream and downstream products of 4-Hydroxy-6-methylnicotinic acid?

For 4-Hydroxy-6-methylnicotinic acid, Upstream Products: 4-Hydroxy-2-methylpyridine, Carbon dioxide, 4-Hydroxy-6-methyl-2-pyrone; Downstream Products: 4-chloro-6-methylpyridine-3-carboxylic acid.

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-Hydroxy-6-methylnicotinic acid (CAS 67367-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48912-3 (accessed 2026-11-09).

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