Description

5-Amino-4-Bromo-2-Methyl-2H-Pyridazin-3-One is a high-purity, functionalized pyridazinone derivative that serves as a critical building block in advanced organic synthesis. Its unique halogenated and aminated structure makes it an invaluable intermediate for constructing complex molecules with specific biological or material properties. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-inflammatory pathways.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides and fungicides, leveraging its heterocyclic core for bioactivity.
• Material Science Research: Serves as a monomer or functional additive in the development of specialty polymers and advanced organic electronic materials.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme mechanisms and protein interactions.
• Custom Synthesis & Contract Manufacturing: A fundamental starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing bespoke compounds for clients.

Basic Information

Product Name	5-Amino-4-Bromo-2-Methyl-2H-Pyridazin-3-One
CAS No.	65269-63-8
Molecular Formula	C5H6BrN3O
Molecular Weight	204.03 g/mol
Synonyms	4-Bromo-5-amino-2-methyl-2H-pyridazin-3-one; 5-Amino-4-bromo-2-methylpyridazin-3(2H)-one; 2-Methyl-5-amino-4-bromo-2H-pyridazin-3-one; 4-Bromo-5-amin-2-methyl-2H-pyridazin-3-on (German); 4-ブロモ-5-アミノ-2-メチル-2H-ピリダジン-3-オン (Japanese); 4-Bromo-5-amino-2-methyl-3(2H)-pyridazinone; 65269-63-8 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our 5-Amino-4-Bromo-2-Methyl-2H-Pyridazin-3-One is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the stringent requirements of research and development applications. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability, consistency, and compliance with your specifications.

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). This compound is light-sensitive (store away from light) and may be hygroscopic (moisture-sensitive); therefore, containers should be kept sealed under an inert atmosphere if specified for long-term storage.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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