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4-chloro-3-methoxy-2-methylpyridine 1-oxide

Also known as: 4-chloro-3-methoxy-2-methylpyridine N-oxide, 4-chloro-3-methoxy-2-methyl-1-oxidopyridin-1-ium, pyridine, 4-chloro-3-methoxy-2-methyl-, 1-oxide, MFCD03093995, 4-Chloro-3-methoxy-2-methylpyridine 1-oxide, 4-Chloro-3-methoxy-2-methylpyridine N-oxide, Intermediate of pantoprazole sodium, T6NJ AO B1 CO1 DG

4-chloro-3-methoxy-2-methylpyridine 1-oxide (CAS 122307-41-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8ClNO2 and a molecular weight of 173.597 g/mol. Key properties include a melting point of 96-100 °C(lit.), a boiling point of 346.2±37.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 163.2±26.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
122307-41-9
Jingsj CID
J-24033-5
Molecular Formula
C7H8ClNO2
Molecular Weight
173.597 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point96-100 °C(lit.)
Boiling Point346.2±37.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point163.2±26.5 °C
Exact Mass173.024353
PSA34.69000
LogP-0.11
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.527

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 4-chloro-3-methoxy-2-methylpyridine 1-oxide?

The CAS number of 4-chloro-3-methoxy-2-methylpyridine 1-oxide is 122307-41-9.

What are the molecular formula and molecular weight of 4-chloro-3-methoxy-2-methylpyridine 1-oxide?

4-chloro-3-methoxy-2-methylpyridine 1-oxide has molecular formula C7H8ClNO2 and molecular weight 173.597 g/mol.

Is 4-chloro-3-methoxy-2-methylpyridine 1-oxide hazardous?

4-chloro-3-methoxy-2-methylpyridine 1-oxide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4-chloro-3-methoxy-2-methylpyridine 1-oxide?

For 4-chloro-3-methoxy-2-methylpyridine 1-oxide, Upstream Products: 4-Chloro-3-methoxy-2-methylpyridine, 3-Methoxy-2-methyl-1H-pyridin-4-one; Downstream Products: 3,4-dimethoxy-2-methylpyridine N-oxide, 2-Chloromethyl-3,4-dimethoxypyridinium chloride, 3,4-Dimethoxy-2-pyridinemethanol.

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-chloro-3-methoxy-2-methylpyridine 1-oxide (CAS 122307-41-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24033-5 (accessed 2026-11-09).

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