Description

2-Chloromethyl-4,5-Dichloropyridazin-3(2H)-One is a versatile and highly functionalized heterocyclic building block, primarily recognized for its role as a key intermediate in advanced organic synthesis. Its value lies in the reactive chloromethyl and dichloro-substituted pyridazinone scaffold, which enables the construction of complex molecules with specific pharmacological or agrochemical activities. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly those focused on creating novel active ingredients.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and infectious diseases.
• Agrochemical Synthesis: Serves as a key building block for developing new herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Chemical Research & Development: Used in academic and industrial R&D labs for exploring new chemical reactions and constructing complex heterocyclic libraries for screening.
• Specialty Chemical Production: Employed in the manufacture of dyes, pigments, and other high-value specialty chemicals requiring a functionalized pyridazinone core.

Basic Information

Product Name	2-Chloromethyl-4,5-Dichloropyridazin-3(2H)-One
CAS No.	51356-03-7
Molecular Formula	C5H3Cl3N2O
Molecular Weight	213.45 g/mol
Synonyms	4,5-Dichloro-2-(chloromethyl)-2,3-dihydropyridazin-3-one; 4,5-Dichloro-2-(chloromethyl)-3(2H)-pyridazinone; 2-(Chloromethyl)-4,5-dichloro-3(2H)-pyridazinone; 4,5-Dichloro-2-chloromethylpyridazin-3(2H)-one; 3(2H)-Pyridazinone, 2-(chloromethyl)-4,5-dichloro-; 2-Chloromethyl-4,5-dichloro-3(2H)-pyridazinone
EINECS	Contact for details

Quality Control

Our 2-Chloromethyl-4,5-Dichloropyridazin-3(2H)-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic intermediates. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and consistency for your critical processes.

Storage

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

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.