Description

4-Chloropyridazine is a versatile halogenated heterocyclic building block of significant importance in advanced organic synthesis. Its core value lies in the reactive chlorine atom, which enables efficient cross-coupling and nucleophilic substitution reactions for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key synthon for the preparation of various drug candidates, particularly those containing pyridazine or fused heterocyclic cores.
• Agrochemical Synthesis: Used in the research and production of herbicides, fungicides, and insecticides that require halogenated heterocyclic motifs.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Material Science Research: Employed in the synthesis of organic electronic materials, such as charge-transport layers or photoactive compounds.
• Chemical Biology Probes: Useful for labeling and modifying biomolecules in proteomics and diagnostic assay development.
• Custom Synthesis and R&D: A fundamental starting material for contract research organizations and fine chemical companies performing bespoke synthesis.

Basic Information

Product Name	4-Chloropyridazine
CAS No.	17180-92-6
Molecular Formula	C4H3ClN2
Molecular Weight	114.53 g/mol
Synonyms	4-Chloro-1,2-diazine; 4-Chloropyridazine; Pyridazine, 4-chloro-; 1,2-Diazine, 4-chloro-; 4-Chloro-1,2-diazabenzene; NSC 403119; 4-Chloropyridazine (principal name)
EINECS	241-212-5

Quality Control

Our 4-Chloropyridazine is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry for identity confirmation and impurity profiling. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.