Description

2-(2-(7-(Diethylamino)-2-Oxo-2H-Chromen-3-Yl)Vinyl)-1-Ethyl-3,3-Dimethyl-3H-Indol-1-Ium Iodide is a high-purity, functional organic salt belonging to the class of cyanine dyes, specifically a heptamethine cyanine derivative incorporating a coumarin moiety. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced photonic and sensing applications. It is primarily utilized by researchers and manufacturers in the fields of biotechnology, material science, and analytical chemistry for developing sensitive probes and functional materials.

Application

• NIR Fluorescent Probes & Labels: Used as a key chromophore for labeling biomolecules (proteins, nucleic acids) in bioimaging and diagnostic assays due to its deep tissue penetration and low background interference.
• Optical Sensor Development: Employed in the fabrication of chemical sensors and biosensors that detect ions, gases, or specific analytes based on fluorescence signal changes.
• Laser Dyes & Photonic Materials: Serves as an active medium in tunable dye lasers and as a functional dopant in polymers for nonlinear optical (NLO) applications.
• Solar Cell Research: Investigated as a potential photosensitizer in dye-sensitized solar cells (DSSCs) for light harvesting in the NIR spectrum.
• Photodynamic Therapy (PDT) Research: Explored for its potential as a photosensitizing agent in cancer treatment research, leveraging its light-activated properties.
• Material Science & Surface Modification: Used to functionalize surfaces or nanoparticles to impart specific optical characteristics for tracking or sensing purposes.

Basic Information

Product Name	2-(2-(7-(Diethylamino)-2-Oxo-2H-Chromen-3-Yl)Vinyl)-1-Ethyl-3,3-Dimethyl-3H-Indol-1-Ium Iodide
CAS No.	1256462-38-0
Molecular Formula	C28H33IN2O2
Molecular Weight	580.48 g/mol
Synonyms	1-Ethyl-3,3-dimethyl-2-[2-[7-(diethylamino)-2-oxo-2H-chromen-3-yl]ethenyl]-3H-indol-1-ium iodide; Cy7.5 coumarin dye derivative; Heptamethine cyanine dye with coumarin; NIR cyanine dye iodide salt; 3H-Indolium, 1-ethyl-3,3-dimethyl-2-[2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]ethenyl]-, iodide; Coumarin-Cy7.5 hybrid dye; Light-sensitive cyanine dye
EINECS	Contact for details

Quality Control

Our production of 2-(2-(7-(Diethylamino)-2-Oxo-2H-Chromen-3-Yl)Vinyl)-1-Ethyl-3,3-Dimethyl-3H-Indol-1-Ium Iodide adheres to stringent quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity, NMR and MS for structural confirmation, and spectrophotometry for optical property verification. A detailed Certificate of Analysis (COA) documenting identity, purity, and key specifications 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). For long-term stability, consider storage under inert atmosphere (argon or nitrogen) and protect from moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 1.0%
Absorption Max (λmax)	Contact for details
Emission Max (λem)	Contact for details

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