Description

4-Chloro-5-(Ethylthio)-2-Phenylpyridazin-3(2H)-One is a specialized heterocyclic organic compound featuring a pyridazinone core substituted with chloro, ethylthio, and phenyl groups. This unique structure makes it a valuable key intermediate in the synthesis of more complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily sought after by research and development chemists and process development teams for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, or other therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides, leveraging its heterocyclic structure for biological activity.
• Chemical Synthesis: Acts as a versatile precursor for further functionalization, enabling the creation of libraries of compounds for high-throughput screening in drug discovery.
• Material Science Research: Potential use in the development of organic electronic materials or ligands for catalytic systems due to its electron-rich aromatic system.
• Academic & Contract Research: Employed in university and CRO (Contract Research Organization) laboratories for methodological studies and the exploration of new chemical reactions.

Basic Information

Product Name	4-Chloro-5-(Ethylthio)-2-Phenylpyridazin-3(2H)-One
CAS No.	25381-21-9
Molecular Formula	C₁₂H₁₁ClN₂OS
Molecular Weight	266.75 g/mol
Synonyms	4-Chloro-5-(ethylthio)-2-phenyl-2,3-dihydropyridazin-3-one; 4-Chloro-5-(ethylthio)-2-phenylpyridazin-3(2H)-one; 2-Phenyl-4-chloro-5-ethylthiopyridazin-3(2H)-one; 4-Chloro-5-ethylthio-2-phenyl-3(2H)-pyridazinone; 5-(Ethylthio)-4-chloro-2-phenyl-3(2H)-pyridazinone; 4-Chloro-5-ethylsulfanyl-2-phenyl-2H-pyridazin-3-one
EINECS	Contact for details

Quality Control

Our 4-Chloro-5-(Ethylthio)-2-Phenylpyridazin-3(2H)-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistent identity. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics is 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 place at room temperature (15-25°C). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.