2,3,5,6-Tetraphenylpyrazine
Also known as: amaron, benzoin imide, tetraphenylpyrazine, 2,3,5,6-Tetraphenyl-1,4-pyrazine, 2,3,5,6-tetraphenyl-1,4-diazine, NSC 123074, Oxaprozin Tetraphenylpyrazine, Pyrazine, tetraphenyl-
2,3,5,6-Tetraphenylpyrazine (CAS 642-04-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C28H20N2 and a molecular weight of 384.47200 g/mol. Key properties include a boiling point of 490.4ºC at 760mmHg, a density of 1.14g/cm3 and a flash point of 187.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 642-04-6
- Jingsj CID
- J-34697-9
- Molecular Formula
- C28H20N2
- Molecular Weight
- 384.47200 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 490.4ºC at 760mmHg |
|---|---|
| Density | 1.14g/cm3 |
| Flash Point | 187.1ºC |
| Exact Mass | 384.16300 |
| PSA | 25.78000 |
| LogP | 7.14460 |
| Refractive Index | 1.635 |
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 2,3,5,6-Tetraphenylpyrazine?
The CAS number of 2,3,5,6-Tetraphenylpyrazine is 642-04-6.
What are the molecular formula and molecular weight of 2,3,5,6-Tetraphenylpyrazine?
2,3,5,6-Tetraphenylpyrazine has molecular formula C28H20N2 and molecular weight 384.47200 g/mol.
What are the upstream and downstream products of 2,3,5,6-Tetraphenylpyrazine?
For 2,3,5,6-Tetraphenylpyrazine, Upstream Products: Benzoin, N-Benzylbenzamide, Benzil.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3,5,6-Tetraphenylpyrazine (CAS 642-04-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34697-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.