Description

4-Bromo-6-Methyl-2H-Pyridazin-3-One is a versatile brominated heterocyclic building block of significant interest in advanced organic synthesis. Its core value lies in its functionalized pyridazinone scaffold, which serves as a critical precursor for constructing more complex molecular architectures. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the discovery and development of new active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Chemical Synthesis: Serves as a versatile precursor for further functionalization via cross-coupling reactions (e.g., Suzuki, Buchwald-Hartwig) due to the reactive bromine substituent.
• Material Science: Potential intermediate in the synthesis of specialty chemicals, dyes, and functional organic materials.
• Academic & Contract Research: Essential reagent for methodological studies and library synthesis in university and CRO (Contract Research Organization) laboratories.

Basic Information

Product Name	4-Bromo-6-Methyl-2H-Pyridazin-3-One
CAS No.	954240-46-1
Molecular Formula	C5H5BrN2O
Molecular Weight	189.01 g/mol
Synonyms	4-Bromo-6-methyl-2H-pyridazin-3-one; 4-Bromo-6-methyl-1,2-dihydropyridazin-3-one; 4-Bromo-6-methylpyridazin-3(2H)-one; 3(2H)-Pyridazinone, 4-bromo-6-methyl-; 6-Methyl-4-bromo-2H-pyridazin-3-one
EINECS	Contact for details

Quality Control

Our 4-Bromo-6-Methyl-2H-Pyridazin-3-One is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with data from techniques including HPLC, NMR, and mass spectrometry to support your research and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). Keep away from incompatible materials.

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.