Description

5-Chloro-4-Methoxy-2-Phenyl-3(2H)-Pyridazinone is a high-purity, synthetically versatile heterocyclic building block. This compound is valued for its role as a key intermediate in the development of advanced pharmaceutical and agrochemical active ingredients. It is primarily sought by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries for synthesizing novel molecules with targeted biological activity.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly in therapeutic areas requiring pyridazinone-based scaffolds.
• Agrochemical Research: Serves as a core structure for developing new herbicides, fungicides, and plant growth regulators with specific modes of action.
• Chemical Synthesis Building Block: Used in organic synthesis for constructing complex heterocyclic systems due to its reactive chloro and methoxy substituents.
• Material Science Research: Investigated as a monomer or functional component in the development of specialty polymers and advanced organic materials.
• Biochemical Tool Compound: Employed in academic and industrial research to study enzyme inhibition and other biological pathways.

Basic Information

Product Name	5-Chloro-4-Methoxy-2-Phenyl-3(2H)-Pyridazinone
CAS No.	76929-42-5
Molecular Formula	C11H9ClN2O2
Molecular Weight	236.65 g/mol
Synonyms	5-Chloro-4-methoxy-2-phenyl-3(2H)-pyridazinone; 5-Chloro-4-methoxy-2-phenylpyridazin-3(2H)-one; 2-Phenyl-5-chloro-4-methoxy-3(2H)-pyridazinone; 3(2H)-Pyridazinone, 5-chloro-4-methoxy-2-phenyl-; 5-Chloro-4-methoxy-2-phenyl-2H-pyridazin-3-one; 76929-42-5; 5-Chloro-4-methoxy-2-phenyl-3-pyridazinone
EINECS	Contact for details

Quality Control

Our 5-Chloro-4-Methoxy-2-Phenyl-3(2H)-Pyridazinone is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting standards for research and development use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

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

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%
Heavy Metals	≤ 20 ppm

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