Description

3,6-Dichloropyridazine-4-Carbonyl Chloride is a highly reactive and versatile heterocyclic building block. This compound is critical for the synthesis of complex molecules, particularly in the pharmaceutical and agrochemical sectors, where it serves as a key intermediate for introducing the pyridazine scaffold. It is primarily sought after by research chemists and process development scientists working on active pharmaceutical ingredients (APIs), crop protection agents, and advanced material precursors.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-inflammatory agents, and kinase inhibitors.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, leveraging the pyridazine moiety for enhanced biological activity.
• Material Science Research: Serves as a precursor for creating specialized ligands, polymers, and organic electronic materials with tailored properties.
• Chemical Biology & Proteomics: Employed in the development of molecular probes, activity-based protein profiling (ABPP) reagents, and bioconjugation tools.
• Custom Synthesis & Contract Manufacturing: A key starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing complex, high-value compounds for clients.

Basic Information

Product Name	3,6-Dichloropyridazine-4-Carbonyl Chloride
CAS No.	6531-08-4
Molecular Formula	C5HCl3N2O
Molecular Weight	211.43 g/mol
Synonyms	4-Chlorocarbonyl-3,6-dichloropyridazine; 3,6-Dichloro-4-pyridazinecarbonyl chloride; 3,6-Dichloropyridazine-4-carboxylic acid chloride; 4-Pyridazinecarbonyl chloride, 3,6-dichloro-; 3,6-Dichloro-1,2-diazine-4-carbonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 3,6-Dichloropyridazine-4-Carbonyl Chloride is manufactured and tested under strict quality management systems. We provide comprehensive analytical data to ensure the material meets the high-purity standards required for research and commercial synthesis. A detailed Certificate of Analysis (COA) is supplied with each shipment, confirming identity, purity, and impurity profiles via validated methods such as HPLC, NMR, and IR spectroscopy.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature and reactivity as an acid chloride, it should be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage. Recommended storage temperature is 2-8°C for optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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