Pyridazine-4-carboxylic acid
Also known as: 4-pyridazinecarboxylic acid, pyridazin-4-carboxylic acid, 1,2-diazine-4-carboxylic acid, MFCD00011576
Pyridazine-4-carboxylic acid (CAS 50681-25-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O2 and a molecular weight of 124.10 g/mol. Key properties include a melting point of 244.2 °C (dec.)(lit.), a boiling point of 404.2±18.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 198.3±21.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 50681-25-9
- Jingsj CID
- J-40614-4
- Molecular Formula
- C5H4N2O2
- Molecular Weight
- 124.10 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 244.2 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 404.2±18.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 198.3±21.2 °C |
| Exact Mass | 124.027275 |
| PSA | 63.08000 |
| LogP | -0.58 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.579 |
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-4-carboxylic acid?
The CAS number of Pyridazine-4-carboxylic acid is 50681-25-9.
What are the molecular formula and molecular weight of Pyridazine-4-carboxylic acid?
Pyridazine-4-carboxylic acid has molecular formula C5H4N2O2 and molecular weight 124.10 g/mol.
What are the upstream and downstream products of Pyridazine-4-carboxylic acid?
For Pyridazine-4-carboxylic acid, Upstream Products: Pyridazine, Carbon dioxide, Pyridazine-4,5-dicarboxylic acid; Downstream Products: Ethyl pyridazine-4-carboxylate, 1-(pyridazin-4-yl)ethan-1-one, Methyl pyridazine-4-carboxylate.
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-4-carboxylic acid (CAS 50681-25-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40614-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.