2-Chloro-3-methylpyridine 1-oxide

2-氯-3-甲基吡啶-N-氮氧化物

Also known as: 2-Chloro-3-methylpyridine N-oxide, 2-chloro-3-methyl-1-oxidopyridin-1-ium, Pyridine, 2-chloro-3-methyl-, 1-oxide, 2-Chloro-3-picoline N-oxide

2-Chloro-3-methylpyridine 1-oxide (CAS 91668-83-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6ClNO and a molecular weight of 143.571 g/mol. It is also known as 2-Chloro-3-methylpyridine N-oxide, 2-chloro-3-methyl-1-oxidopyridin-1-ium and Pyridine, 2-chloro-3-methyl-, 1-oxide. Key properties include a boiling point of 316.8±22.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 145.4±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91668-83-6
Jingsj CID
J-1362639-0
Molecular Formula
C6H6ClNO
Chinese Name
2-氯-3-甲基吡啶-N-氮氧化物
Molecular Weight
143.571 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point316.8±22.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point145.4±22.3 °C

Frequently Asked Questions

What is the CAS number of 2-Chloro-3-methylpyridine 1-oxide?

The CAS number of 2-Chloro-3-methylpyridine 1-oxide is 91668-83-6.

What are the molecular formula and molecular weight of 2-Chloro-3-methylpyridine 1-oxide?

2-Chloro-3-methylpyridine 1-oxide has molecular formula C6H6ClNO and molecular weight 143.571 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Chloro-3-methylpyridine 1-oxide (CAS 91668-83-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1362639-0 (accessed 2026-10-22).

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