3,5-Dimethyl-4-nitropyridine 1-oxide

Also known as: 3,5-Dimethyl-4-nitropyridine N-oxide, 4-Nitro-3,5-dimethylpyridine N-oxide, 3,5-Dimethyl-4-nitropyridine oxide, 3,5-dimethyl-4-nitro-1-oxidopyridin-1-ium, 3,5-dimethyl-4-nitro-1$l^{5}-pyridin-1-one, Pyridine,3,5-dimethyl-4-nitro-, 1-oxide, Esomeprazole Impurity 45, Esomeprazole Sodium Impurity 43, 3,4-nitro-,1-oxide

3,5-Dimethyl-4-nitropyridine 1-oxide (CAS 14248-66-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O3 and a molecular weight of 168.15000 g/mol. Key properties include a boiling point of 377.2ºC at 760 mmHg, a density of 1.3 g/cm3 and a flash point of 181.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14248-66-9
Jingsj CID: J-1467958-4
Molecular Formula: C₇H₈N₂O₃
Molecular Weight: 168.15000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	377.2ºC at 760 mmHg
Density	1.3 g/cm3
Flash Point	181.9ºC
Exact Mass	168.05300
PSA	71.28000
LogP	2.16330
Vapor Pressure	1.49E-05mmHg at 25°C
Refractive Index	1.573

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 3,5-Dimethyl-4-nitropyridine 1-oxide?

The CAS number of 3,5-Dimethyl-4-nitropyridine 1-oxide is 14248-66-9.

What are the molecular formula and molecular weight of 3,5-Dimethyl-4-nitropyridine 1-oxide?

3,5-Dimethyl-4-nitropyridine 1-oxide has molecular formula C7H8N2O3 and molecular weight 168.15000 g/mol.

What are the upstream and downstream products of 3,5-Dimethyl-4-nitropyridine 1-oxide?

For 3,5-Dimethyl-4-nitropyridine 1-oxide, Upstream Products: 3,5-Dimethylpyridine N-oxide, 3,5-Dimethylpyridine; Downstream Products: 3,5-dimethylpyridin-4-amine, 4-Bromo-3,5-dimethylpyridine, 3,5-Dimethyl-4-nitropyridine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3,5-Dimethyl-4-nitropyridine 1-oxide (CAS 14248-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1467958-4 (accessed 2026-11-09).

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