Description

4-Chloro-5-Ethoxypyridazin-3(2H)-One is a high-purity pyridazinone derivative, a crucial heterocyclic building block in advanced organic synthesis. This compound matters for its role as a versatile intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create new molecules with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Serves as a core building block for creating novel herbicides, fungicides, and insecticides with improved efficacy and selectivity.
• Chemical Research & Development: Used in academic and industrial labs for exploring new chemical reactions and synthesizing novel pyridazinone-based libraries for screening.
• Material Science Precursor: Potential intermediate in the synthesis of specialty chemicals, dyes, or functional materials requiring specific heterocyclic structures.

Basic Information

Product Name	4-Chloro-5-Ethoxypyridazin-3(2H)-One
CAS No.	252210-37-0
Molecular Formula	C6H7ClN2O2
Molecular Weight	174.59 g/mol
Synonyms	4-Chloro-5-ethoxypyridazin-3(2H)-one; 5-Ethoxy-4-chloro-2H-pyridazin-3-one; 4-Chloro-5-ethoxy-1,2-dihydropyridazin-3-one; 4-Chloro-5-ethoxy-3(2H)-pyridazinone; 3(2H)-Pyridazinone, 4-chloro-5-ethoxy-; 252210-37-0; 4-Chloro-5-ethoxypyridazinone
EINECS	Contact for details

Quality Control

Our 4-Chloro-5-Ethoxypyridazin-3(2H)-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all specifications and test results to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
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.