Pyridazine
Also known as: 1,2-DIAZINE, 1,2-Diazabenzene, 1,2-diazabenzene radical cation, 1,2-diazine, AKOS 92457, EINECS 206-025-5, MFCD00006463, OIZINE, ORTHODIAZINE, Oizine, Pyridazin, Pyridiazine, diazine, o-diazine, orthodiazine, pyridazin, pyridazine
Pyridazine (CAS 289-80-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H4N2 and a molecular weight of 80.09 g/mol. Key properties include a melting point of −8 °C(lit.), a boiling point of 208.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 85.0±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 289-80-5
- Jingsj CID
- J-47161-9
- Molecular Formula
- C4H4N2
- Molecular Weight
- 80.09 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −8 °C(lit.) |
|---|---|
| Boiling Point | 208.0±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 85.0±0.0 °C |
| Exact Mass | 80.037445 |
| PSA | 25.78000 |
| LogP | -0.77 |
| Vapor Pressure | 0.3±0.3 mmHg at 25°C |
| Refractive Index | 1.503 |
| Storage Conditions | Refrigerator |
| Additional Property | MISCIBLE |
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 Pyridazine?
The CAS number of Pyridazine is 289-80-5.
What are the molecular formula and molecular weight of Pyridazine?
Pyridazine has molecular formula C4H4N2 and molecular weight 80.09 g/mol.
What are the upstream and downstream products of Pyridazine?
For Pyridazine, Upstream Products: morpholine, Malononitrile, 3,6-Dichloropyridazine; Downstream Products: Ethyl pyridazine-4-carboxylate, Pyridazine-3-carbonitrile, Pyridazine-4-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyridazine (CAS 289-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47161-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.