5-Hydroxyquinoxaline
Also known as: Quinoxalin-5-ol, 5-Quinoxalinol, Quinoxaline-5-ol, 1H-quinoxalin-5-one
5-Hydroxyquinoxaline (CAS 17056-99-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H6N2O and a molecular weight of 146.146 g/mol. Key properties include a melting point of 101 °C, a boiling point of 320.0±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 147.3±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17056-99-4
- Jingsj CID
- J-1378269-9
- Molecular Formula
- C8H6N2O
- Molecular Weight
- 146.146 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 101 °C |
|---|---|
| Boiling Point | 320.0±22.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 147.3±22.3 °C |
| Exact Mass | 146.048019 |
| PSA | 46.01000 |
| LogP | 1.18 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.705 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 5-Hydroxyquinoxaline?
The CAS number of 5-Hydroxyquinoxaline is 17056-99-4.
What are the molecular formula and molecular weight of 5-Hydroxyquinoxaline?
5-Hydroxyquinoxaline has molecular formula C8H6N2O and molecular weight 146.146 g/mol.
What are the upstream and downstream products of 5-Hydroxyquinoxaline?
For 5-Hydroxyquinoxaline, Upstream Products: Quinoxaline, 2,3-Diaminophenol, Glyoxal sodium bisulfite hydrate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Hydroxyquinoxaline (CAS 17056-99-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1378269-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.