Description

Pyrazolo[1,5-B]Pyridazine CAS NO 35731-27-2 is a high-value nitrogen-containing heterocyclic compound that serves as a critical building block in advanced organic synthesis. Its fused bicyclic structure makes it a versatile and privileged scaffold for developing novel active pharmaceutical ingredients (APIs) and agrochemicals. This intermediate is essential for research and development chemists in the pharmaceutical, agrochemical, and material science industries seeking to create new molecules with targeted biological or functional properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and oncology targets.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with novel modes of action.
• Material Science: Serves as a building block for creating specialty polymers, ligands for catalysis, and organic electronic materials.
• Chemical Biology & Proteomics: Employed as a core structure in the design of molecular probes and enzyme inhibitors for biological research.
• Academic & Contract Research: A valuable reagent for methodology development and exploration of new chemical space in university and CRO laboratories.

Basic Information

Product Name	Pyrazolo[1,5-B]Pyridazine
CAS No.	35731-27-2
Molecular Formula	C6H5N3
Molecular Weight	119.12 g/mol
Synonyms	Pyrazolo[1,5-b]pyridazine; 1H-Pyrazolo[1,5-b]pyridazine; Pyrazolo[1,5-b]pyridazine, 9CI; Pyrazolo(1,5-b)pyridazine; 1H-Pyrazolo[1,5-b]pyridazine; Pyrazolo[1,5-b]pyridazine (8CI); SCHEMBL11821079; BCP32333; ZINC000003869756; AKOS005209195; DB-077993; FT-0658847; NS00023892; EN300-22016; A839059
EINECS	Contact for details

Quality Control

Our Pyrazolo[1,5-B]Pyridazine is manufactured under strict quality management systems. Every 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 each shipment, detailing all critical quality attributes. Our production adheres to cGMP principles where applicable, ensuring reliability for your most demanding research and development projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.