Description

4,5-Dichloro-2-(4-Methoxyphenyl)Sulfonyl-Pyridazin-3-One is a high-purity, specialized heterocyclic sulfone building block of significant interest in advanced organic synthesis. Its unique molecular architecture, featuring a dichloropyridazinone core linked to a methoxyphenylsulfonyl group, makes it a valuable precursor for the development of novel active compounds. This intermediate is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for creating new molecules with targeted biological activities.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly for targeted therapies.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides with specific modes of action.
• Chemical Biology Probe Development: Serves as a core structure for creating molecular probes to study biological pathways.
• Material Science Research: Potential precursor for specialty polymers or functional materials with specific electronic properties.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific advanced intermediates.
• Academic & Industrial R&D: Utilized in research laboratories for methodological studies and exploring new chemical spaces.

Basic Information

Product Name	4,5-Dichloro-2-(4-Methoxyphenyl)Sulfonyl-Pyridazin-3-One
CAS No.	155164-59-3
Molecular Formula	C11H8Cl2N2O4S
Molecular Weight	335.16 g/mol
Synonyms	4,5-Dichloro-2-[(4-methoxyphenyl)sulfonyl]-3(2H)-pyridazinone; 2-(4-Methoxyphenylsulfonyl)-4,5-dichloropyridazin-3(2H)-one; 4,5-Dichloro-2-(p-methoxyphenylsulfonyl)pyridazin-3-one; 155164-59-3; 4,5-Dichloro-2-(4-methoxyphenylsulfonyl)pyridazin-3(2H)-one; Pyridazin-3(2H)-one, 4,5-dichloro-2-[(4-methoxyphenyl)sulfonyl]-
EINECS	Contact for details

Quality Control

Our 4,5-Dichloro-2-(4-Methoxyphenyl)Sulfonyl-Pyridazin-3-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our commitment to quality ensures a reliable supply of this high-value intermediate for your most demanding R&D and scale-up projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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