Description

3,5-Dichloropyridazine is a versatile halogenated heterocyclic building block of significant importance in advanced organic synthesis. Its value lies in its dual reactive sites, which enable selective functionalization for constructing complex molecular architectures. This compound is primarily needed by researchers and process chemists in the pharmaceutical and agrochemical industries for the development of new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those with pyridazine-based scaffolds for various therapeutic targets.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides, where the dichloropyridazine moiety contributes to biological activity.
• Ligand and Catalyst Development: Serves as a starting material for creating specialized chelating ligands and organocatalysts used in asymmetric synthesis.
• Material Science Research: Employed in the synthesis of organic electronic materials, such as charge-transport layers or photoactive compounds.
• Cross-Coupling Reactions: An excellent substrate for palladium-catalyzed reactions like Suzuki, Stille, or Buchwald-Hartwig amination to introduce diverse functional groups.
• Nucleophilic Aromatic Substitution: The chlorine atoms are readily displaced by various nucleophiles (amines, alkoxides) to create a library of substituted pyridazines.

Basic Information

Item	Details
Product Name	3,5-Dichloropyridazine
CAS No.	1837-55-4
Molecular Formula	C4H2Cl2N2
Molecular Weight	148.98 g/mol
Synonyms	3,5-Dichloro-1,2-diazine; 3,5-Dichloropyridazine; 1,2-Diazine, 3,5-dichloro-; Pyridazine, 3,5-dichloro-; NSC 403119; 3,5-Dichloro-1,2-diazabenzene; 3,5-Dichloro-1,2-diazine; 3,5-Dichloropyridazin
EINECS	217-413-7

Quality Control

Our 3,5-Dichloropyridazine is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and strong oxidizing agents.

Specification

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