5,6,7,8-Tetrahydroquinoxaline
5,6,7,8-四氢喹喔啉
Also known as: Tetrahydroquinoxaline, 5,6,7,8-Tetrahydrochinoxalin, Cyclohexapyrazine, Quinoxaline, 5,6,7,8-tetrahydro-, FEMA 3321, MFCD00038078, EINECS 252-002-8
5,6,7,8-Tetrahydroquinoxaline (CAS 34413-35-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H10N2 and a molecular weight of 134.178 g/mol. It is also known as Tetrahydroquinoxaline, 5,6,7,8-Tetrahydrochinoxalin and Cyclohexapyrazine. Key properties include a boiling point of 241.8±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 90.6±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.
- 34413-35-9
- Jingsj CID
- J-832792-1
- Molecular Formula
- C8H10N2
- Chinese Name
- 5,6,7,8-四氢喹喔啉
- Molecular Weight
- 134.178 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 241.8±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 90.6±0.0 °C |
| Exact Mass | 134.084396 |
| PSA | 25.78000 |
| LogP | 1.41 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.552 |
| Additional Property | slightly soluble |
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 5,6,7,8-Tetrahydroquinoxaline?
The CAS number of 5,6,7,8-Tetrahydroquinoxaline is 34413-35-9.
What are the molecular formula and molecular weight of 5,6,7,8-Tetrahydroquinoxaline?
5,6,7,8-Tetrahydroquinoxaline has molecular formula C8H10N2 and molecular weight 134.178 g/mol.
Is 5,6,7,8-Tetrahydroquinoxaline hazardous?
5,6,7,8-Tetrahydroquinoxaline 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 5,6,7,8-Tetrahydroquinoxaline?
For 5,6,7,8-Tetrahydroquinoxaline, Downstream Products: 5,6,7,8-tetrahydroquinoxalin-5-amine.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5,6,7,8-Tetrahydroquinoxaline (CAS 34413-35-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-832792-1 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.