Description

4-Bromo-5-Hydroxy-2-Methyl-2H-Pyridazin-3-One is a high-purity, functionalized pyridazinone derivative serving as a critical synthetic intermediate. Its value lies in providing a versatile brominated scaffold for constructing complex molecules in advanced research and development. This compound is essential for pharmaceutical chemists and agrochemical researchers engaged in the synthesis of novel active ingredients, where precise molecular modification is required.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting enzyme inhibition.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and plant growth regulators, leveraging its heterocyclic core.
• Chemical Synthesis: Serves as a versatile precursor for cross-coupling reactions (e.g., Suzuki, Buchwald-Hartwig) due to the reactive bromine substituent.
• Material Science Research: Potential monomer or functional additive in the development of specialized polymers and organic electronic materials.
• Bioconjugation & Probe Development: Useful for creating labeled compounds or probes for biochemical and diagnostic applications.

Basic Information

Product Name	4-Bromo-5-Hydroxy-2-Methyl-2H-Pyridazin-3-One
CAS No.	64178-59-2
Molecular Formula	C5H5BrN2O2
Molecular Weight	205.01 g/mol
Synonyms	4-Bromo-5-hydroxy-2-methyl-2H-pyridazin-3-one; 4-Bromo-5-hydroxy-2-methylpyridazin-3(2H)-one; 3(2H)-Pyridazinone, 4-bromo-5-hydroxy-2-methyl-; 2-Methyl-4-bromo-5-hydroxypyridazin-3-one; 4-Bromo-5-hydroxy-2-methyl-3(2H)-pyridazinone; 5-Hydroxy-2-methyl-4-bromo-2H-pyridazin-3-one
EINECS	Contact for details

Quality Control

Our 4-Bromo-5-Hydroxy-2-Methyl-2H-Pyridazin-3-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled 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)	≥ 98.0%
Melting Point	Contact for details
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.