Description

3H-Pyrazol-3-One, 4-7-(Dimethylamino)-2(1H)-Quinolinylidene-2,4-Dihydro-2,5-Diphenyl- is a sophisticated heterocyclic organic compound with a complex fused-ring structure, serving as a key advanced intermediate in fine chemical synthesis. Its value lies in its unique molecular architecture, which is pivotal for constructing functional dyes, pigments, and specialized pharmaceutical active ingredients. This high-purity chemical is essential for research and development laboratories and production facilities in the photographic, optical, and specialty chemical manufacturing sectors, where precise molecular control is required. The compound is supplied under strict quality control to ensure batch-to-batch consistency for critical applications.

Application

• Functional Dye & Pigment Synthesis: Acts as a crucial precursor for the development of novel cyanine and polymethine dyes used in photographic films, optical data storage, and laser applications.
• Pharmaceutical Intermediate: Serves as a key building block in the research and synthesis of potential therapeutic agents, particularly those targeting specific biological pathways.
• Non-Linear Optical (NLO) Materials: Used in the development of advanced materials for photonics, electro-optics, and frequency doubling due to its conjugated electron system.
• Analytical Chemistry Reagent: Employed as a specialized reagent or a chromophore in the development of sensitive detection methods and chemical sensors.
• Organic Light-Emitting Diode (OLED) Research: Investigated as a potential emissive or charge-transport material in the fabrication of next-generation display technologies.
• Academic & Industrial R&D: A valuable compound for synthetic organic chemists exploring new reactions, heterocyclic chemistry, and material science applications.

Basic Information

Item	Details
Product Name	3H-Pyrazol-3-One, 4-7-(Dimethylamino)-2(1H)-Quinolinylidene-2,4-Dihydro-2,5-Diphenyl-
CAS No.	71494-90-1
Molecular Formula	C26H22N4O
Molecular Weight	406.48 g/mol
Synonyms	4-[7-(Dimethylamino)-2-oxo-1,2-dihydroquinolin-4-ylidene]-2,5-diphenyl-2,4-dihydro-3H-pyrazol-3-one; 4-(7-Dimethylamino-2-oxo-1,2-dihydroquinolin-4-ylidene)-2,5-diphenyl-2,4-dihydro-3H-pyrazol-3-one; 2,5-Diphenyl-4-(7-dimethylamino-2-oxo-1,2-dihydroquinolin-4-ylidene)-2,4-dihydro-3H-pyrazol-3-one; 4-(7-Dimethylamino-2-oxo-1,2-dihydroquinolin-4-yliden)-2,5-diphenyl-2,4-dihydro-3H-pyrazol-3-on; DQDP; Light-sensitive pyrazolone quinoline derivative
EINECS	Contact for details

Quality Control

Our production of 3H-Pyrazol-3-One, 4-7-(Dimethylamino)-2(1H)-Quinolinylidene-2,4-Dihydro-2,5-Diphenyl- adheres to a stringent quality management system. Every batch is analytically verified using advanced techniques like HPLC, NMR, and mass spectrometry to confirm identity, purity, and the absence of critical impurities. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications to support your quality assurance protocols and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere if prolonged exposure is anticipated during use.

Specification

Item	Specification
Appearance	Dark red to purple crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 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.