Description

4,5-Dichloro-3(2H)-Pyridazinone is a heterocyclic organic compound that serves as a versatile and critical building block in advanced chemical synthesis. Its value lies in its reactive dichloro-substituted pyridazinone core, which enables precise functionalization for creating complex molecular architectures. This intermediate is essential for research and production in the pharmaceutical and agrochemical industries, where it is used to develop novel active ingredients.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly in therapeutic areas requiring heterocyclic scaffolds.
• Agrochemical Synthesis: Building block for creating advanced herbicides, fungicides, and insecticides with specific modes of action.
• Organic Synthesis Research: A versatile reagent for academic and industrial R&D in heterocyclic and medicinal chemistry.
• Material Science Precursor: Used in the synthesis of specialized organic materials and ligands for catalytic systems.
• Chemical Intermediate: Serves in multi-step synthesis processes to introduce the pyridazinone moiety into larger, more complex molecules.

Basic Information

Product Name	4,5-Dichloro-3(2H)-Pyridazinone
CAS No.	932-22-9
Molecular Formula	C4H2Cl2N2O
Molecular Weight	164.98 g/mol
Synonyms	4,5-Dichloro-3-pyridazinone; 4,5-Dichloro-3(2H)-pyridazinone; 4,5-Dichloropyridazin-3(2H)-one; 3(2H)-Pyridazinone, 4,5-dichloro-; 4,5-Dichloro-2H-pyridazin-3-one; 4,5-Dichloro-1,2-dihydropyridazine-3-one
EINECS	Contact for details

Quality Control

Our 4,5-Dichloro-3(2H)-Pyridazinone is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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