Pyridazine-4-carboxylic acid

哒嗪-4-羧酸

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. It is also known as 4-pyridazinecarboxylic acid, pyridazin-4-carboxylic acid and 1,2-diazine-4-carboxylic acid. 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-40614-5
Molecular Formula
C5H4N2O2
Chinese Name
哒嗪-4-羧酸
Molecular Weight
124.10 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point244.2 °C (dec.)(lit.)
Boiling Point404.2±18.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point198.3±21.2 °C

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.

Data compiled from public chemical databases 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-40614-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.