Quinoxaline
Also known as: 1,4-Benzodiazine, 1,4-Diazanaphthalene, Benzoparadiazine, Benzopyrazine, Phenopiazine
Quinoxaline (CAS 91-19-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H6N2 and a molecular weight of 130.147 g/mol. Key properties include a melting point of 29-32 °C(lit.), a boiling point of 229.5±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 98.3±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91-19-0
- Jingsj CID
- J-1337688-0
- Molecular Formula
- C8H6N2
- Molecular Weight
- 130.147 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 29-32 °C(lit.) |
|---|---|
| Boiling Point | 229.5±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 98.3±0.0 °C |
| Exact Mass | 130.053101 |
| PSA | 25.78000 |
| LogP | 1.30 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.653 |
| Additional Property | SOLUBLE |
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 Quinoxaline?
The CAS number of Quinoxaline is 91-19-0.
What are the molecular formula and molecular weight of Quinoxaline?
Quinoxaline has molecular formula C8H6N2 and molecular weight 130.147 g/mol.
What are the upstream and downstream products of Quinoxaline?
For Quinoxaline, Upstream Products: o-Phenylenediamine, Phenylglyoxal monohydrate, Ethylene glycol; Downstream Products: 2,3-Pyrazinedicarboxylic anhydride, 1,2,3,4-Tetrahydroquinoxaline, Pyrazino[2,3-f]quinoxaline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Quinoxaline (CAS 91-19-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1337688-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.