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Pyridazine-3-carboxylic acid

Also known as: 3-Carboxypyridazine, 3-Carboxy-1,2-diazine, NSC 110335, 3-Pyridazinecarboxylic acid

Pyridazine-3-carboxylic acid (CAS 2164-61-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O2 and a molecular weight of 124.098 g/mol. Key properties include a melting point of 190.3-190.4ºC, 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.
2164-61-6
Jingsj CID
J-1509582-6
Molecular Formula
C5H4N2O2
Molecular Weight
124.098 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point190.3-190.4ºC
Boiling Point404.2±18.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point198.3±21.2 °C
Exact Mass124.027275
PSA63.08000
LogP-0.15
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.579

Customs & Trade Information

HS Code2933990090
Summary2933990090. 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-3-carboxylic acid?

The CAS number of Pyridazine-3-carboxylic acid is 2164-61-6.

What are the molecular formula and molecular weight of Pyridazine-3-carboxylic acid?

Pyridazine-3-carboxylic acid has molecular formula C5H4N2O2 and molecular weight 124.098 g/mol.

What are the upstream and downstream products of Pyridazine-3-carboxylic acid?

For Pyridazine-3-carboxylic acid, Upstream Products: Pyridazin-3-ylmethanol, 6-Chloropyridazine-3-carboxylic acid, 3-Chloro-6-methylpyridazine; Downstream Products: Pyridazine.

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-3-carboxylic acid (CAS 2164-61-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1509582-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.