2-Methylquinoxaline
Also known as: 2-Methylquinoxaline, 2-Methylbenzopyrazine, 2-methylchinoxaline, 2-Methyl-chinoxalin, Quinoxaline, 2-methyl-, 2-methyl-quinoxalin
2-Methylquinoxaline (CAS 7251-61-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H8N2 and a molecular weight of 144.173 g/mol. Key properties include a boiling point of 243.9±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 107.2±0.0 °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.
- 7251-61-8
- Jingsj CID
- J-1991397-4
- Molecular Formula
- C9H8N2
- Molecular Weight
- 144.173 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 243.9±20.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 107.2±0.0 °C |
| Exact Mass | 144.068741 |
| PSA | 25.78000 |
| LogP | 1.76 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.633 |
| Additional Property | miscible |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 2-Methylquinoxaline?
The CAS number of 2-Methylquinoxaline is 7251-61-8.
What are the molecular formula and molecular weight of 2-Methylquinoxaline?
2-Methylquinoxaline has molecular formula C9H8N2 and molecular weight 144.173 g/mol.
Is 2-Methylquinoxaline hazardous?
2-Methylquinoxaline 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 2-Methylquinoxaline?
For 2-Methylquinoxaline, Upstream Products: Hydroxyacetone, o-Phenylenediamine, propylene glycol; Downstream Products: 5-Methyl-2,3-pyrazinedicarboxylic acid, Quinoxaline, 2-Quinoxalinecarbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methylquinoxaline (CAS 7251-61-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991397-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.