Picolinic acid N-oxide
Also known as: 1-Oxopicolinic acid, 1-oxidopyridin-1-ium-2-carboxylic acid, 2-Carboxylicacid-pyridine-1-oxide, 2-Carboxypyridine N-oxide, 2-Pyridinecarboxylic acid 1-oxide, Pyridine-2-carboxylic acid 1-oxide, Picolinic acid 1-oxide, RARECHEM AL BO 1646, picolinicacid-oxide
Picolinic acid N-oxide (CAS 824-40-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5NO3 and a molecular weight of 139.109 g/mol. Key properties include a melting point of 162 °C (dec.)(lit.), a boiling point of 469.0±18.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 237.4±21.2 °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.
- 824-40-8
- Jingsj CID
- J-1401468-7
- Molecular Formula
- C6H5NO3
- Molecular Weight
- 139.109 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 162 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 469.0±18.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 237.4±21.2 °C |
| Exact Mass | 139.026947 |
| PSA | 62.76000 |
| LogP | -1.52 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.577 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 Picolinic acid N-oxide?
The CAS number of Picolinic acid N-oxide is 824-40-8.
What are the molecular formula and molecular weight of Picolinic acid N-oxide?
Picolinic acid N-oxide has molecular formula C6H5NO3 and molecular weight 139.109 g/mol.
Is Picolinic acid N-oxide hazardous?
Picolinic acid N-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 Picolinic acid N-oxide?
For Picolinic acid N-oxide, Upstream Products: 2-Picolinic acid, 2-Pyridinecarboxaldehyde, Pyridine N-oxide; Downstream Products: 2-Picolinic acid, Pyridine N-oxide, Methyl 6-aminopicolinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Picolinic acid N-oxide (CAS 824-40-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401468-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.