Description

7-Chloro-2H-Pyrimido[1,2-B]Pyridazin-2-One is a high-purity heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. This specialized intermediate is valued for its unique fused-ring structure, which enables the development of novel compounds with targeted biological or material properties. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical and agrochemical sectors for the development of new active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Research: Used in the synthesis of novel herbicides, fungicides, or insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science Precursor: Serves as a starting material for creating specialized organic ligands or functional molecules used in electronic materials or sensors.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies in heterocyclic and medicinal chemistry.
• Custom Synthesis Building Block: Provides a versatile chlorinated pyrimidopyridazinone scaffold for bespoke synthesis projects and library generation.

Basic Information

Product Name	7-Chloro-2H-Pyrimido[1,2-B]Pyridazin-2-One
CAS No.	88820-44-4
Molecular Formula	C7H4ClN3O
Molecular Weight	181.58 g/mol
Synonyms	7-Chloro-2H-pyrimido[1,2-b]pyridazin-2-one; 7-Chloro-2H-pyrimido[1,2-b]pyridazin-2-one; 7-Chloropyrimido[1,2-b]pyridazin-2(1H)-one; 88820-44-4; Pyrimido[1,2-b]pyridazin-2-one, 7-chloro-; 7-Chloro-1H-pyrimido[1,2-b]pyridazin-2-one; 7-Chloro-2H-[1,2,4]triazolo[1,5-a]pyrimidin-2-one (incorrect but common search variant)
EINECS	Contact for details

Quality Control

Our 7-Chloro-2H-Pyrimido[1,2-B]Pyridazin-2-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and mass spectrometry, to ensure it meets the stringent requirements of research and development applications. A detailed Certificate of Analysis (COA) with batch-specific data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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