Description

5-Chloro-2-Methylpyridazin-3(2H)-One is a versatile heterocyclic building block and key synthetic intermediate in organic chemistry. Its value lies in its functionalized pyridazinone core, which is integral for constructing complex molecules with targeted biological activities. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the development of new active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Chemical Research & Development: Acts as a fundamental scaffold for medicinal chemists exploring structure-activity relationships (SAR) and developing new chemical entities.
• Fine Chemical Production: Employed in the multi-step synthesis of complex, high-value specialty chemicals and other advanced intermediates.

Basic Information

Product Name	5-Chloro-2-Methylpyridazin-3(2H)-One
CAS No.	14628-34-3
Molecular Formula	C5H5ClN2O
Molecular Weight	144.56 g/mol
Synonyms	5-Chloro-2-methyl-3(2H)-pyridazinone; 5-Chloro-2-methyl-2H-pyridazin-3-one; 2-Methyl-5-chloropyridazin-3(2H)-one; 5-Chloro-2-methylpyridazin-3-one; 14628-34-3; 5-Chloro-2-methyl-3-pyridazinone; 5-Chloro-2-methyl-3(2H)-pyridazinone
EINECS	Contact for details

Quality Control

Our 5-Chloro-2-Methylpyridazin-3(2H)-One is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and residual solvents are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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