Description

4-Hydroxy-5-Nitropyridazin-3(2H)-One is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. Its unique pyridazinone core functionalized with nitro and hydroxyl groups makes it a versatile intermediate for creating complex molecular architectures. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and cardiovascular diseases.
• Agrochemical Research: Used in the development of new herbicides and plant growth regulators, leveraging its bioactive heterocyclic structure.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing complex heterocyclic compounds, dyes, and functional materials.
• Biochemical Research: Employed in medicinal chemistry programs for structure-activity relationship (SAR) studies and library synthesis.
• Material Science: Investigated as a potential monomer or additive for creating specialized polymers with unique electronic or optical properties.

Basic Information

Product Name	4-Hydroxy-5-Nitropyridazin-3(2H)-One
CAS No.	2854-59-3
Molecular Formula	C4H3N3O4
Molecular Weight	157.08 g/mol
Synonyms	5-Nitro-2,3-dihydro-4H-pyridazin-4-one; 5-Nitro-4-hydroxy-2,3-dihydropyridazin-3-one; 5-Nitro-4-hydroxypyridazin-3(2H)-one; 4-Hydroxy-5-nitropyridazin-3-one; 3-Hydroxy-6-nitropyridazine; 5-Nitro-4-pyridazinol; 5-Nitro-4(1H)-pyridazinone
EINECS	220-663-5

Quality Control

Our 4-Hydroxy-5-Nitropyridazin-3(2H)-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment and is available upon request.

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 such as strong bases and reducing agents. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Yellow to light brown 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.