Description

2-[[4-(Diethylamino)-2-Methylphenyl]Methylene]-2,3-Dihydro-4H-1-Benzopyran-4-One is a specialized organic compound belonging to the benzopyranone class, valued for its role as a key synthetic intermediate and functional chromophore. This compound matters for its ability to impart specific optical and electronic properties in advanced material formulations. It is primarily needed by manufacturers in the dyes and pigments, optical materials, and specialty chemical synthesis sectors.

Application

• Dye and Pigment Intermediate: A crucial precursor for synthesizing specific methine and polymethine dyes used in various industrial applications.
• Nonlinear Optical (NLO) Materials: Used in research and development of materials for photonics, optical switching, and frequency conversion due to its conjugated structure.
• Laser Dye Synthesis: Serves as a building block for organic compounds used in tunable dye lasers.
• Fluorescent Probe Development: Employed in the design of molecular probes and sensors for analytical chemistry and bio-imaging.
• Organic Semiconductor Research: Investigated as a component in the development of organic light-emitting diodes (OLEDs) and photovoltaic cells.
• Specialty Chemical Synthesis: Acts as a versatile intermediate for creating complex molecules in pharmaceutical and agrochemical research.

Basic Information

Product Name	2-[[4-(Diethylamino)-2-Methylphenyl]Methylene]-2,3-Dihydro-4H-1-Benzopyran-4-One
CAS No.	71156-00-8
Molecular Formula	C21H23NO2
Molecular Weight	321.42 g/mol
Synonyms	4H-1-Benzopyran-4-one, 2-[[4-(diethylamino)-2-methylphenyl]methylene]-2,3-dihydro-; 2-((4-(Diethylamino)-2-methylbenzylidene)-2,3-dihydro-1-benzopyran-4-one; Disperse Yellow 201 (C.I. 127590); Solvent Yellow 176; C.I. 127590; 4-Oxo-4H-chromene-3-carbaldehyde derivative; 3-[(4-Diethylamino-2-methylphenyl)methylene]-2,3-dihydro-4H-chromen-4-one
EINECS	Contact for details

Quality Control

Our 2-[[4-(Diethylamino)-2-Methylphenyl]Methylene]-2,3-Dihydro-4H-1-Benzopyran-4-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.