Description

1,3,5-Triphenyl-4,5-Dihydro-1H-Pyrazole is a versatile heterocyclic organic compound belonging to the pyrazoline class, serving as a critical synthetic intermediate and research chemical. Its value lies in its unique tricyclic structure, which provides a rigid scaffold for developing advanced materials and active pharmaceutical ingredients (APIs). This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, particularly for applications in organic synthesis, ligand development, and as a precursor for fluorescent dyes.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Organic Light-Emitting Diodes (OLEDs): Used as a core structure or dopant in the development of electroluminescent materials for display and lighting technologies.
• Coordination Chemistry & Catalysis: Acts as a ligand for transition metals, forming complexes used in catalytic reactions and material science research.
• Fluorescent Probe Development: Serves as a precursor for synthesizing dyes and probes used in bioimaging and sensor applications due to its inherent photophysical properties.
• Agrochemical Research: Investigated as an intermediate for creating new active ingredients with herbicidal or insecticidal properties.
• Polymer & Material Science: Incorporated into polymer backbones to modify thermal stability, mechanical properties, or optical characteristics.
• Academic & Industrial R&D: A fundamental reagent for methodological studies in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	1,3,5-Triphenyl-4,5-Dihydro-1H-Pyrazole
CAS No.	742-01-8
Molecular Formula	C21H18N2
Molecular Weight	298.38 g/mol
Synonyms	1,3,5-Triphenyl-2-pyrazoline; 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole; 2-Pyrazoline, 1,3,5-triphenyl-; 1,3,5-Triphenylpyrazolidine; Triphenylpyrazoline; NSC 408696; 1H-Pyrazole, 4,5-dihydro-1,3,5-triphenyl-; 1,3,5-Triphenyl-δ²-pyrazoline
EINECS	212-008-2

Quality Control

Our 1,3,5-Triphenyl-4,5-Dihydro-1H-Pyrazole is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting all critical quality attributes. Our commitment to reliable supply and traceability meets the stringent requirements of research and development laboratories.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	168 - 172 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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