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4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone

Also known as: 4-Hydroxy-6-methyl-3-nitropyridin-2(1H)-one, 2,4-Dihydroxy-6-methyl-3-nitropyridine, 4-Hydroxy-6-methyl-3-nitro-2-pyridone, 1,2-Dihydro-4-hydroxy-6-methyl-3-nitro-2-oxopyridine, MFCD00167612

4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone (CAS 4966-90-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6N2O4 and a molecular weight of 170.123 g/mol. Key properties include a melting point of 293-296 °C(lit.), a boiling point of 501.5±45.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 257.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4966-90-9
Jingsj CID
J-1994036-4
Molecular Formula
C6H6N2O4
Molecular Weight
170.123 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point293-296 °C(lit.)
Boiling Point501.5±45.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point257.1±28.7 °C
Exact Mass170.032761
PSA98.91000
LogP-1.36
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.655

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-methyl-3-nitro-2(1H)-pyridinone?

The CAS number of 4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone is 4966-90-9.

What are the molecular formula and molecular weight of 4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone?

4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone has molecular formula C6H6N2O4 and molecular weight 170.123 g/mol.

What are the upstream and downstream products of 4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone?

For 4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone, Upstream Products: 2,4-Dihydroxy-6-methylpyridine, 4-Hydroxy-6-methyl-2-pyrone; Downstream Products: 2-chloro-N,6-dimethyl-3-nitropyridin-4-amine, 2,4-Dichloro-6-methyl-3-nitropyridine, 4-Chloro-6-methyl-3-nitropyridin-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. "4-Hydroxy-6-methyl-3-nitro-2(1H)-pyridinone (CAS 4966-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994036-4 (accessed 2026-11-09).

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