Description

5-Bromo-2-Methylpyridazin-3(2H)-One is a versatile brominated heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for constructing complex molecular architectures, particularly in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily needed by research institutions and industrial R&D departments focused on medicinal chemistry, crop protection, and material science.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of potential drug candidates, especially those targeting central nervous system (CNS) disorders and inflammatory diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Acts as a building block for creating specialized polymers, ligands for catalysis, and organic electronic materials.
• Chemical Synthesis: Employed in cross-coupling reactions (e.g., Suzuki, Buchwald-Hartwig) to introduce functionalized pyridazinone motifs into more complex molecules.
• Academic & Contract Research: A valuable reagent for methodological studies and library synthesis in academic and contract research organizations (CROs).

Basic Information

Product Name	5-Bromo-2-Methylpyridazin-3(2H)-One
CAS No.	67264-09-9
Molecular Formula	C5H5BrN2O
Molecular Weight	189.01 g/mol
Synonyms	5-Bromo-2-methyl-2H-pyridazin-3-one; 5-Bromo-2-methyl-3(2H)-pyridazinone; 3(2H)-Pyridazinone, 5-bromo-2-methyl-; 5-Bromo-2-methylpyridazin-3-one; 2-Methyl-5-bromopyridazin-3(2H)-one; 5-Bromo-2-methyl-1,2-dihydropyridazine-3-one
EINECS	Contact for details

Quality Control

Our 5-Bromo-2-Methylpyridazin-3(2H)-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.