Description

1-(2,4-Dichlorophenyl)-4-Hydroxy-6-Oxo-1,6-Dihydro-3-Pyridazinecarboxylic Acid is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound matters for its critical role as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring potent biological activity. Research and development teams in the pharmaceutical and agrochemical industries need this precise chemical to develop new drug candidates and specialty products.

Application

This specialized intermediate is designed for high-value synthesis applications. Its primary uses include:

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Research: Serves as a key scaffold for developing new herbicides and pesticides with specific modes of action.
• Chemical Synthesis Building Block: Used in organic synthesis to construct complex pyridazine-based molecules for material science and catalysis research.
• Academic & Contract Research: Essential for universities and CROs (Contract Research Organizations) conducting medicinal chemistry and structure-activity relationship (SAR) studies.
• Process Development & Scale-Up: Employed in pilot plants and kilo-labs for optimizing synthetic routes before commercial manufacturing.

Basic Information

Product Name	1-(2,4-Dichlorophenyl)-4-Hydroxy-6-Oxo-1,6-Dihydro-3-Pyridazinecarboxylic Acid
CAS No.	121582-66-9
Molecular Formula	C11H6Cl2N2O4
Molecular Weight	301.08 g/mol
Synonyms	4-Hydroxy-1-(2,4-dichlorophenyl)-6-oxo-1,6-dihydropyridazine-3-carboxylic acid; 1,6-Dihydro-1-(2,4-dichlorophenyl)-4-hydroxy-6-oxo-3-pyridazinecarboxylic Acid; 3-Pyridazinecarboxylic acid, 1,6-dihydro-1-(2,4-dichlorophenyl)-4-hydroxy-6-oxo-; 1-(2,4-Dichlorophenyl)-4-hydroxy-6-oxo-1,6-dihydro-3-pyridazinecarboxylic acid; 1-(2,4-Dichlorophenyl)-4-hydroxy-6-oxo-1,6-dihydro-pyridazine-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 1-(2,4-Dichlorophenyl)-4-Hydroxy-6-Oxo-1,6-Dihydro-3-Pyridazinecarboxylic Acid adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FTIR and NMR, to ensure compliance with exacting R&D and pre-clinical standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. The container must be kept tightly sealed to protect the contents from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.