2-Chloro-3-methylpyridine 1-oxide
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. 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-1362639-6
- Molecular Formula
- C6H6ClNO
- Molecular Weight
- 143.571 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 316.8±22.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 145.4±22.3 °C |
| Exact Mass | 143.013794 |
| PSA | 25.46000 |
| LogP | -0.15 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.544 |
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 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.
What are the upstream and downstream products of 2-Chloro-3-methylpyridine 1-oxide?
For 2-Chloro-3-methylpyridine 1-oxide, Upstream Products: 2-Chloro-3-methylpyridine, N-(3-Methylpyridin-2-yl)acetamide, Acetyl chloride; Downstream Products: 2,6-Dichloro-3-methylpyridine, 2,4-Dichloro-3-methylpyridine.
Data compiled from public chemical databases such as PubChem 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-1362639-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.