3-Pyridinol N-oxide
Also known as: 3-Hydroxypyridine N-oxide, 3-Hydroxypyridine 1-oxide, 3-Pyridinol 1-oxide, 3-Pyridinol, 1-oxide, 3-Pyridinol-1-oxide, 3-Pyridinol-N-oxide, 3-hydroxypyridine-1-oxide, EINECS 229-545-4, Hydroxypyridine N-oxide, MFCD00006200, Pyridin-3-ol 1-oxide, Pyridin-3-ol-1-oxid, Pyridin-3-ol-1-oxyde, pyridin-3-ol 1-oxide, Furosemide Impurity 74, 1-oxidopyridin-1-ium-3-ol
3-Pyridinol N-oxide (CAS 6602-28-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NO2 and a molecular weight of 111.099 g/mol. Key properties include a melting point of 190-192 °C(lit.), a boiling point of 387.7±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 188.3±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6602-28-4
- Jingsj CID
- J-3615-7
- Molecular Formula
- C5H5NO2
- Molecular Weight
- 111.099 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 190-192 °C(lit.) |
|---|---|
| Boiling Point | 387.7±15.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 188.3±20.4 °C |
| Exact Mass | 111.032028 |
| PSA | 45.69000 |
| LogP | -0.61 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.554 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
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 3-Pyridinol N-oxide?
The CAS number of 3-Pyridinol N-oxide is 6602-28-4.
What are the molecular formula and molecular weight of 3-Pyridinol N-oxide?
3-Pyridinol N-oxide has molecular formula C5H5NO2 and molecular weight 111.099 g/mol.
Is 3-Pyridinol N-oxide hazardous?
3-Pyridinol N-oxide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of 3-Pyridinol N-oxide?
For 3-Pyridinol N-oxide, Upstream Products: 3-Hydroxypyridine, Pyridine N-oxide; Downstream Products: 3-Methoxy-4-nitropyridine 1-oxide, 3-hydroxypicolinonitrile, 2-Bromo-3-hydroxypyridine 1-oxide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Pyridinol N-oxide (CAS 6602-28-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3615-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.