Description

Coumarin 343 X Carboxylic Acid is a functionalized coumarin derivative, specifically engineered with a carboxylic acid moiety to enhance its solubility and reactivity for advanced applications. This modification is critical for creating stable covalent bonds with various substrates, making it an indispensable component in the development of high-performance materials and sensitive detection systems. It is primarily sought after by researchers and manufacturers in the fields of advanced material science, analytical chemistry, and life sciences for its superior photophysical properties.

Application

• Fluorescent Labeling and Probes: Covalent attachment to biomolecules (proteins, antibodies, nucleic acids) for fluorescence microscopy, flow cytometry, and immunoassays.
• Polymer and Material Science: As a reactive monomer or additive for synthesizing luminescent polymers, smart coatings, and optical materials.
• Sensor Development: Key building block for creating chemosensors and biosensors to detect ions, small molecules, or enzymatic activity.
• Dye Laser Media: Potential use as a gain medium in tunable dye lasers due to its coumarin-based fluorescent core.
• Organic Electronics: Research component in the fabrication of organic light-emitting diodes (OLEDs) and photovoltaic cells.
• Analytical Standards: Used as a high-purity reference standard in chromatographic and spectroscopic method development.

Basic Information

Product Name	Coumarin 343 X Carboxylic Acid
CAS No.	946123-11-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	7-(Diethylamino)-2-oxo-2H-chromene-3-carboxylic acid; Coumarin 343 acid; C343 acid; 3-Carboxy-7-(diethylamino)coumarin; 7-Diethylaminocoumarin-3-carboxylic acid; Coumarin 343 carboxylic acid derivative; Fluorescent coumarin acid
EINECS	Contact for details

Quality Control

Our Coumarin 343 X Carboxylic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and spectrophotometry for photophysical property verification. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research and manufacturing specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. Due to its hygroscopic nature, the container should be kept in a desiccated environment. For long-term storage, consider storing under an inert atmosphere to prevent potential degradation.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Standard Grade)
Loss on Drying	≤ 2.0%
Fluorescence Properties	Ex/Em maxima provided per batch

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