Description

7-(Diethylamino)Coumarin-3-Carboxylic is a versatile, functionalized coumarin derivative that serves as a critical building block and fluorescent probe in advanced chemical synthesis. Its value lies in the unique combination of a reactive carboxylic acid group and a strongly electron-donating diethylamino substituent, which imparts significant solvatochromic and fluorescent properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to develop new active ingredients, sensors, and functional dyes.

Application

• Fluorescent Probe & Sensor Development: Utilized as a key precursor for synthesizing environment-sensitive fluorescent dyes and molecular probes for detecting ions, pH, or biomolecules.
• Pharmaceutical Intermediate: Serves as a versatile scaffold in medicinal chemistry for the synthesis of novel drug candidates, particularly those targeting fluorescence-based imaging or diagnostics.
• Advanced Material Synthesis: Incorporated into polymers, dendrimers, or organic frameworks to create smart materials with light-harvesting, sensing, or optoelectronic properties.
• Agrochemical Research: Used in the development of new active ingredients or tracer compounds for environmental and metabolic studies.
• Dye & Pigment Industry: Acts as an intermediate for producing specialized coumarin-based dyes with high fluorescence quantum yields for laser dyes or security inks.
• Bioconjugation & Labeling: The carboxylic acid group enables covalent attachment to proteins, antibodies, or nanoparticles for bioimaging and diagnostic applications.

Basic Information

Product Name	7-(Diethylamino)Coumarin-3-Carboxylic
CAS No.	261943-47-9
Molecular Formula	C₁₄H₁₅NO₄
Molecular Weight	261.27 g/mol
Synonyms	7-(Diethylamino)-2-oxo-2H-chromene-3-carboxylic acid; 3-Carboxy-7-(diethylamino)coumarin; 7-Diethylaminocoumarin-3-carboxylic acid; Coumarin 343 precursor; C343 acid; 2H-1-Benzopyran-3-carboxylic acid, 7-(diethylamino)-2-oxo-; 7-Diethylamino-2-oxo-2H-chromene-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 7-(Diethylamino)Coumarin-3-Carboxylic is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity for research and industrial use. Each lot undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and loss on drying. Certificates of Analysis (COA) detailing all specifications are provided with every shipment 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 place at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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