4-(Hydroxyamino)quinoline 1-oxide
Also known as: 4-(Hydroxyamino)quinoline N-oxide, 4-(hydroxyamino)-quinolin1-oxide, 4-(hydroxyamino)quinoline1-oxide, 4-Hydroxyaminoquinoline-1-oxide, 4-Hydroxyaminoquinoline N-oxide, 4-Hydroxylaminoquinoline 1-oxide, 4-Hydroxylaminoquinoline N-oxide, 4HAQO, N-(4-Quinolyl)hydroxylamine 1'-oxide, N-(4-Quinolyl)hydroxylamine 1'-Oxide, N-Hydroxy-4-quinolinamine 1-oxide, N-Hydroxyquinolin-4-amine 1-oxide, Quinoline, 4-(hydroxyamino)-, 1-oxide, Hydroxyaminoquinolineoxide, n-(4-quinolyl)-hydroxylamin1'-oxide
4-(Hydroxyamino)quinoline 1-oxide (CAS 4637-56-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O2 and a molecular weight of 176.172 g/mol. Key properties include a melting point of 214ºC, a boiling point of 425.6±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 211.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4637-56-3
- Jingsj CID
- J-31502-6
- Molecular Formula
- C9H8N2O2
- Molecular Weight
- 176.172 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 214ºC |
|---|---|
| Boiling Point | 425.6±55.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 211.2±31.5 °C |
| Exact Mass | 176.058578 |
| PSA | 57.72000 |
| LogP | 0.00 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.651 |
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 4-(Hydroxyamino)quinoline 1-oxide?
The CAS number of 4-(Hydroxyamino)quinoline 1-oxide is 4637-56-3.
What are the molecular formula and molecular weight of 4-(Hydroxyamino)quinoline 1-oxide?
4-(Hydroxyamino)quinoline 1-oxide has molecular formula C9H8N2O2 and molecular weight 176.172 g/mol.
What are the upstream and downstream products of 4-(Hydroxyamino)quinoline 1-oxide?
For 4-(Hydroxyamino)quinoline 1-oxide, Upstream Products: 4-Nitroquinoline 1-oxide, Ethanol.
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-(Hydroxyamino)quinoline 1-oxide (CAS 4637-56-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31502-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.