Description

5,6-Diphenylpyridazin-3-One is a high-value heterocyclic organic compound that serves as a critical synthetic intermediate and a versatile scaffold in advanced chemical research. Its unique fused aromatic structure makes it a valuable building block for developing novel materials and active pharmaceutical ingredients (APIs). This compound is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Research: Used as a precursor in the development of new herbicides, fungicides, and plant growth regulators.
• Material Science: Acts as a core structure for creating organic semiconductors, liquid crystals, and photoactive materials.
• Chemical Biology: Employed as a probe or scaffold in the design of enzyme inhibitors and molecular probes for biological studies.
• Academic & Contract Research: Essential reagent for synthetic methodology development and heterocyclic chemistry research in universities and CROs.
• Dye & Pigment Industry: Potential intermediate for the synthesis of specialized dyes and colorants due to its conjugated system.

Basic Information

Product Name	5,6-Diphenylpyridazin-3-One
CAS No.	2166-34-9
Molecular Formula	C₁₇H₁₂N₂O
Molecular Weight	260.29 g/mol
Synonyms	5,6-Diphenyl-3(2H)-pyridazinone; 5,6-Diphenyl-2,3-dihydropyridazin-3-one; 3-Pyridazinol, 5,6-diphenyl-; 5,6-Diphenylpyridazin-3(2H)-one; NSC 40898; 5,6-Diphenyl-3-pyridazinol; 5,6-Diphenyl-1,2-dihydropyridazine-3-one
EINECS	218-513-1

Quality Control

Every batch of 5,6-Diphenylpyridazin-3-One is manufactured and tested under strict quality management systems. We provide comprehensive analytical data to ensure identity, purity, and consistency for your research and development needs. A detailed Certificate of Analysis (COA) is supplied with each shipment, documenting key parameters such as assay, related substances, and residual solvents.

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 heat, sparks, and open flame. The compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
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.