Pteridine
Also known as: 1,3,5,8-Tetraaza-naphthalin, 1,3,5,8-Tetraazanaphthalene, Azinepurine, Inchi=1/C6H4N4/C1-2-9-6-5(8-1)3-7-4-10-6/H1-4, Pteridene, Pteridine (6CI,7CI,8CI,9CI), Pyrazino[2,3-d]pyrimidine, Pyrimido(4,5-b)pyrazine, pteridine
Pteridine (CAS 91-18-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H4N4 and a molecular weight of 132.12300 g/mol. Key properties include a melting point of 138-138.5°C (lit.), a boiling point of 265ºC at 760 mmHg, a density of 1.369g/cm3 and a flash point of 124.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91-18-9
- Jingsj CID
- J-1613000-0
- Molecular Formula
- C6H4N4
- Molecular Weight
- 132.12300 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 138-138.5°C (lit.) |
|---|---|
| Boiling Point | 265ºC at 760 mmHg |
| Density | 1.369g/cm3 |
| Flash Point | 124.7ºC |
| Exact Mass | 132.04400 |
| PSA | 51.56000 |
| LogP | 0.41980 |
| Refractive Index | 1.68 |
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 Pteridine?
The CAS number of Pteridine is 91-18-9.
What are the molecular formula and molecular weight of Pteridine?
Pteridine has molecular formula C6H4N4 and molecular weight 132.12300 g/mol.
What are the upstream and downstream products of Pteridine?
For Pteridine, Upstream Products: 1,1-Dichloroacetone, 2,4,5,6-Tetraaminopyrimidine sulfate, Aminopyrazine; Downstream Products: 3-Aminopyrazine-2-carbaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pteridine (CAS 91-18-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1613000-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.