Description

4,5-Dichloro-2-[(4-chlorophenyl)sulfonyl]-3(2H)-pyridazinone is a specialized heterocyclic sulfone derivative of significant interest in advanced organic synthesis. This compound serves as a critical high-purity building block for the development of novel active ingredients, particularly in the agrochemical and pharmaceutical sectors. It is primarily sought by R&D chemists and process development teams in fine chemical and custom synthesis industries for creating new molecules with targeted biological activity.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of novel herbicides, fungicides, and plant growth regulators, leveraging its pyridazinone core.
• Pharmaceutical Research: Used as a sophisticated scaffold in medicinal chemistry for developing potential therapeutic agents.
• Chemical Synthesis: Serves as a versatile building block for creating complex sulfonamide and heterocyclic compounds in custom and contract manufacturing.
• Material Science: Investigated for the development of specialty polymers and functional materials with specific electronic or photochemical properties.

Basic Information

Product Name	4,5-Dichloro-2-[(4-chlorophenyl)sulfonyl]-3(2H)-pyridazinone
CAS No.	155164-60-6
Molecular Formula	C10H5Cl3N2O3S
Molecular Weight	363.58 g/mol
Synonyms	2-[(4-Chlorophenyl)sulfonyl]-4,5-dichloro-3(2H)-pyridazinone; 4,5-Dichloro-2-(p-chlorophenylsulfonyl)-3(2H)-pyridazinone; 4,5-Dichloro-2-(4-chlorobenzenesulfonyl)-2H-pyridazin-3-one; 155164-60-6; 4,5-Dichloro-2-[(4-chlorophenyl)sulfonyl]pyridazin-3(2H)-one
EINECS	Contact for details

Quality Control

Our production of 4,5-Dichloro-2-[(4-chlorophenyl)sulfonyl]-3(2H)-pyridazinone adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles. We support custom synthesis and can tailor specifications, including purity grades (e.g., >97%, >98%, >99%), to meet specific project requirements.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%

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