Description

2-[2-[2-Chloro-3-[2-(3-Ethyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclohexen-1-Yl]Ethenyl]-3-Ethyl-Benzthiazoliumper is a specialized organic dye intermediate belonging to the benzothiazolium cyanine dye family. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced optical applications. It is primarily utilized by manufacturers and research institutions in the photonics, imaging, and high-tech materials sectors.

Application

• NIR Fluorescent Dyes & Probes: Serves as a key precursor for synthesizing cyanine dyes used in bioimaging, flow cytometry, and in vivo diagnostics.
• Optical Data Storage: Used in the development of materials for recordable optical discs (e.g., CD-R, DVD-R) due to its light-absorbing characteristics.
• Laser Technology: Acts as a gain medium or saturable absorber in tunable dye lasers operating in the near-infrared spectrum.
• Photodynamic Therapy (PDT): Investigated for use in photosensitizers for targeted cancer treatments.
• Non-Linear Optics (NLO): Employed in research for developing materials with electro-optic and photorefractive properties.
• Sensor Development: A building block for creating chemical sensors and biosensors that detect specific analytes through fluorescence changes.

Basic Information

Item	Details
Product Name	2-[2-[2-Chloro-3-[2-(3-Ethyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclohexen-1-Yl]Ethenyl]-3-Ethyl-Benzthiazoliumper
CAS No.	219595-74-1
Molecular Formula	C29H29ClN2O4S2
Molecular Weight	577.13 g/mol
Synonyms	IR-26; Benzothiazolium, 2-[2-[2-chloro-3-[(1E,3E)-3-(1,3-dihydro-3-ethyl-2H-benzothiazol-2-ylidene)-1-propen-1-yl]-1-cyclohexen-1-yl]ethenyl]-3-ethyl-, perchlorate; 3-Ethyl-2-[2-[2-chloro-3-[(1E,3E)-3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]-1-cyclohexen-1-yl]ethenyl]benzothiazolium Perchlorate; Cyanine dye IR-26; NIR dye IR-26; 1H-Benzothiazolium, 2-[2-[2-chloro-3-[(1E,3E)-3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]-1-cyclohexen-1-yl]ethenyl]-3-ethyl-, perchlorate (1:1)
EINECS	Contact for details

Quality Control

Our production of 2-[2-[2-Chloro-3-[2-(3-Ethyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclohexen-1-Yl]Ethenyl]-3-Ethyl-Benzthiazoliumper adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for sensitive optical applications. Each lot is analyzed to confirm identity, purity, and spectral properties. Certificates of Analysis (COA) detailing specific test results are 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 material is light-sensitive (store away from light). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 1.0%
Absorption Max (λmax)	1065 nm ± 10 nm (in solvent)

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