4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid

4-氧代-1-苯基-1,4-二氢-3-哒嗪羧酸

Also known as: 3-pyridazinecarboxylic acid, 1,4-dihydro-4-oxo-1-phenyl-, 4-oxo-1-phenyl-1,4-dihydropyridazine-3-carboxylic acid, 4-oxo-1-phenylpyridazine-3-carboxylic acid

4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid (CAS 147920-37-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H8N2O3 and a molecular weight of 216.19300 g/mol. It is also known as 3-pyridazinecarboxylic acid, 1,4-dihydro-4-oxo-1-phenyl-, 4-oxo-1-phenyl-1,4-dihydropyridazine-3-carboxylic acid and 4-oxo-1-phenylpyridazine-3-carboxylic acid. Key properties include a boiling point of 405.6ºC at 760mmHg, a density of 1.35g/cm3 and a flash point of 199.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
147920-37-4
Jingsj CID
J-994705-4
Molecular Formula
C11H8N2O3
Chinese Name
4-氧代-1-苯基-1,4-二氢-3-哒嗪羧酸
Molecular Weight
216.19300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point405.6ºC at 760mmHg
Density1.35g/cm3
Flash Point199.1ºC

Frequently Asked Questions

What is the CAS number of 4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid?

The CAS number of 4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid is 147920-37-4.

What are the molecular formula and molecular weight of 4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid?

4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid has molecular formula C11H8N2O3 and molecular weight 216.19300 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-oxo-1-phenyl-1,4-dihydro-3-pyridazinecarboxylic acid (CAS 147920-37-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-994705-4 (accessed 2026-10-24).

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