Description

2-[2-[3-[2-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Ethylidene]-2-(Phenylthio)-1-Cyclohexen-1-Yl]Ethenyl]-1,3,3-Trimethyl-3H-Indolium Chloride is a high-purity, functional cyanine dye salt, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is critical for applications requiring precise light absorption and emission characteristics in advanced material science and biotechnology. It is primarily utilized by manufacturers and research institutions in the photonics, optical data storage, and biomedical imaging sectors.

Application

• NIR Fluorescent Probes and Labels: Used as a key chromophore in the synthesis of fluorescent dyes for bioimaging, flow cytometry, and in vivo diagnostic applications.
• Optical Data Storage Media: Serves as a recording layer material in writable and rewritable optical discs (e.g., CD-R, DVD-R) due to its excellent light absorption properties.
• Laser and Photonic Materials: Employed in the fabrication of dye-sensitized solar cells (DSSCs), optical switches, and laser dyes for specific wavelength ranges.
• Photodynamic Therapy (PDT) Agents: Investigated as a potential photosensitizer component for targeted cancer therapies.
• Chemical Sensors: Incorporated into sensor designs for the detection of specific ions or biomolecules based on fluorescence quenching or enhancement.
• Academic and Industrial R&D: Used as a reference standard and building block in synthetic chemistry for developing new functional dyes and materials.

Basic Information

Item	Detail
Product Name	2-[2-[3-[2-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Ethylidene]-2-(Phenylthio)-1-Cyclohexen-1-Yl]Ethenyl]-1,3,3-Trimethyl-3H-Indolium Chloride
CAS No.	269401-43-6
Molecular Formula	C37H41ClN2S
Molecular Weight	581.25 g/mol
Synonyms	Cy5.5 derivative; NIR Cyanine dye chloride salt; 2-[2-[3-[2-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2-(phenylthio)-1-cyclohexen-1-yl]ethenyl]-1,3,3-trimethyl-3H-indolium chloride; Heptamethine cyanine dye; IR-786 related compound; 1,3,3-Trimethyl-2-[2-[3-[2-(1,3,3-trimethylindolin-2-ylidene)ethylidene]-2-(phenylsulfanyl)cyclohex-1-en-1-yl]vinyl]-3H-indol-1-ium chloride
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key spectral properties is 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 place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 1.0 %
UV-Vis Absorption (λmax)	Contact for details
Fluorescence Emission (λmax)	Contact for details

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