Description

3-(4-Bromophenyl)-7-Diethylamino-Chromen-2-One is a specialized coumarin derivative, a high-value organic intermediate and functional dye precursor. This compound matters for its unique photophysical properties, making it a critical component in advanced material science and analytical chemistry. Industries such as OLED development, laser dyes, and fluorescence-based sensor manufacturing need this precise chemical building block for research and production.

Application

• Organic Light-Emitting Diode (OLED) Materials: Serves as a key intermediate or dopant in the synthesis of electroluminescent layers.
• Laser Dyes and Fluorescent Probes: Used in the development of tunable laser dyes and highly sensitive molecular probes for bio-imaging and diagnostics.
• Photochromic and Nonlinear Optical Materials: A fundamental building block for materials that change color with light or exhibit nonlinear optical effects.
• Academic and Industrial R&D: Employed as a standard or novel substrate in photochemistry and materials science research.
• Chemical Sensors: Incorporated into polymeric or solid-state matrices for the detection of specific ions or molecules via fluorescence signaling.
• Specialty Dyes and Pigments: Acts as a precursor for high-performance, light-fast dyes used in niche applications.

Basic Information

Product Name	3-(4-Bromophenyl)-7-Diethylamino-Chromen-2-One
CAS No.	720674-46-4
Molecular Formula	C20H20BrNO2
Molecular Weight	386.29 g/mol
Synonyms	7-(Diethylamino)-3-(4-bromophenyl)-2H-chromen-2-one; 3-(4-Bromophenyl)-7-(diethylamino)coumarin; 4-Bromophenyl-7-diethylaminocoumarin; Coumarin 4-Br; C4Br; A fluorescent coumarin derivative; Light-sensitive coumarin dye intermediate
EINECS	Contact for details

Quality Control

Our production of 3-(4-Bromophenyl)-7-Diethylamino-Chromen-2-One adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity, essential for optoelectronic applications. Each lot is characterized by advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light). Keep the container tightly sealed in a dry environment to prevent moisture absorption and ensure long-term stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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