Description

5-Chloro-4-Iodo-3(2H)-Pyridazinone is a halogenated pyridazinone derivative, a versatile heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its unique substitution pattern, which makes it a critical intermediate for constructing complex molecules with tailored biological and physical properties. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the creation of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and infectious diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Chemical Biology Probe: Acts as a scaffold for creating molecular probes to study enzyme function and biological pathways due to its modifiable halogen sites.
• Material Science: Employed in the synthesis of specialized organic electronic materials and ligands for catalytic systems.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences sector.

Basic Information

Product Name	5-Chloro-4-Iodo-3(2H)-Pyridazinone
CAS No.	929190-84-1
Molecular Formula	C4H2ClIN2O
Molecular Weight	256.43 g/mol
Synonyms	5-Chloro-4-iodo-1,2-dihydropyridazine-3-one; 4-Iodo-5-chloro-3(2H)-pyridazinone; 3(2H)-Pyridazinone, 5-chloro-4-iodo-; 5-Chloro-4-iodo-2H-pyridazin-3-one; 5-Chloro-4-iodopyridazin-3(2H)-one
EINECS	Contact for details

Quality Control

Every batch of 5-Chloro-4-Iodo-3(2H)-Pyridazinone is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure identity, purity, and consistency for your research and development processes. A Certificate of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and residual solvents is supplied with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Keep the container sealed to minimize exposure to moisture.

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.