2,3,5-Trimethylpyridine 1-oxide

2,3,5-三甲基吡啶-N-氧化物

Also known as: 2,3,5-Trimethylpyridine N-oxide, 2,3,5-Collidine N-Oxide, 2,3,5-Trimethylpyridine-1-Oxide, 2,3,5-trimethyl-1-oxidopyridin-1-ium, 2,3,5-trimethyl-pyridine 1-oxide, Esomeprazole Impurity 20, Esomeprazole Sodium Impurity 35, Omeprazole Related Compound 4, Pyridine, 2,3,5-trimethyl-, 1-oxide

2,3,5-Trimethylpyridine 1-oxide (CAS 74409-42-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11NO and a molecular weight of 137.17900 g/mol. It is also known as 2,3,5-Trimethylpyridine N-oxide, 2,3,5-Collidine N-Oxide and 2,3,5-Trimethylpyridine-1-Oxide. Key properties include a melting point of 40-41 ºC and a density of 0.99±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74409-42-0
Jingsj CID
J-1460432-0
Molecular Formula
C8H11NO
Chinese Name
2,3,5-三甲基吡啶-N-氧化物
Molecular Weight
137.17900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point40-41 ºC
Density0.99±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 2,3,5-Trimethylpyridine 1-oxide?

The CAS number of 2,3,5-Trimethylpyridine 1-oxide is 74409-42-0.

What are the molecular formula and molecular weight of 2,3,5-Trimethylpyridine 1-oxide?

2,3,5-Trimethylpyridine 1-oxide has molecular formula C8H11NO and molecular weight 137.17900 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3,5-Trimethylpyridine 1-oxide (CAS 74409-42-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1460432-0 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.