5-Methylquinoxaline
5-甲基喹喔啉
Also known as: 5-methylquinoxaline, 5-methyl quinoxaline, 5-methyl-quinoxalin, 8-methylquinoxaline, Quinoxaline, 5-methyl-, T66 BN ENJ G1
5-Methylquinoxaline (CAS 13708-12-8) 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. It is also known as 5-methylquinoxaline, 5-methyl quinoxaline and 5-methyl-quinoxalin. Key properties include a melting point of 20-21 °C(lit.), a boiling point of 244.8±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 108.8±13.1 °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.
- 13708-12-8
- Jingsj CID
- J-42568-5
- Molecular Formula
- C9H8N2
- Chinese Name
- 5-甲基喹喔啉
- Molecular Weight
- 144.173 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 20-21 °C(lit.) |
|---|---|
| Boiling Point | 244.8±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 108.8±13.1 °C |
| Exact Mass | 144.068741 |
| PSA | 25.78000 |
| LogP | 1.76 |
| Vapor Pressure | 0.0±0.4 mmHg at 25°C |
| Refractive Index | 1.633 |
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 5-Methylquinoxaline?
The CAS number of 5-Methylquinoxaline is 13708-12-8.
What are the molecular formula and molecular weight of 5-Methylquinoxaline?
5-Methylquinoxaline has molecular formula C9H8N2 and molecular weight 144.173 g/mol.
Is 5-Methylquinoxaline hazardous?
5-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 5-Methylquinoxaline?
For 5-Methylquinoxaline, Upstream Products: 2,3-Diaminotoluene, 2-Methyl-6-nitroaniline, Glyoxal sodium bisulfite hydrate; Downstream Products: Quinoxaline-5-carbaldehyde, 5-(dibromomethyl)quinoxaline.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methylquinoxaline (CAS 13708-12-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42568-5 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.