Description

Pyridazine, 1,3-Dichloro-1,2-Dihydro- (9Ci) is a specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel pharmaceuticals and agrochemicals, where its unique chlorinated pyridazine core enables the construction of complex molecular architectures. It is primarily needed by research and development chemists in the pharmaceutical, agrochemical, and material science industries for creating new active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-infective agents.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides, fungicides, and insecticides.
• Material Science Research: Serves as a building block for creating specialized ligands, polymers, and organic electronic materials.
• Chemical Biology Probes: Employed in the design of molecular probes and inhibitors for studying enzyme function and biological pathways.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthesis projects.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploratory chemistry in university and corporate laboratories.

Basic Information

Product Name	Pyridazine, 1,3-Dichloro-1,2-Dihydro- (9Ci)
CAS No.	401564-64-5
Molecular Formula	C4H4Cl2N2
Molecular Weight	150.99 g/mol
Synonyms	1,3-Dichloro-1,2-dihydropyridazine; 1,2-Dihydro-1,3-dichloropyridazine; 1,3-Dichloro-1,2-dihydro-pyridazine; 1,3-Dichloro-1,2-dihydropyridazine (9CI); 1,3-Dichloro-1,4-dihydropyridazine; 1,3-Dichloro-4H-pyridazine; 4H-Pyridazine, 1,3-dichloro-
EINECS	Contact for details

Quality Control

Our Pyridazine, 1,3-Dichloro-1,2-Dihydro- (9Ci) is produced and handled under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP standards for advanced intermediate production where required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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