Description

2-[2-[2-Chloro-3-[2-(3-Ethyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclopenten-1-Yl]Ethenyl]-3-Ethyl-Benzthiazolium Iodide is a specialized polymethine dye salt, a member of the cyanine dye family, known for its strong light absorption and fluorescence properties. This compound is valued for its precise photophysical characteristics, making it a critical functional material in advanced optical applications. It is primarily sought by manufacturers and researchers in the photonics, imaging, and high-tech materials sectors.

Application

• Optical Data Storage: As a key component in recordable optical media (e.g., CD-R, DVD-R) for its specific light-absorption profile.
• Laser Dyes & Photonics: Used as a gain medium or saturable absorber in tunable dye lasers and other photonic devices.
• Biomedical Imaging & Staining: Employed as a fluorescent probe or stain in biological assays and diagnostic applications.
• Non-Linear Optics (NLO): A functional material for applications requiring high optical non-linearity, such as optical limiting and switching.
• Sensitizers in Photography: Acts as a spectral sensitizer for silver halide photographic emulsions.
• Solar Energy Research: Investigated for use in dye-sensitized solar cells (DSSCs) due to its light-harvesting capabilities.
• Security Inks & Markers: Utilized in covert security printing due to its distinct fluorescence under specific conditions.

Basic Information

Product Name	2-[2-[2-Chloro-3-[2-(3-Ethyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclopenten-1-Yl]Ethenyl]-3-Ethyl-Benzthiazolium Iodide
CAS No.	65303-14-2
Molecular Formula	C29H28ClIN2S2
Molecular Weight	631.02 g/mol
Synonyms	2-[2-[2-Chloro-3-[2-(3-ethylbenzothiazol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-ethyl-1,3-benzothiazol-3-ium iodide; Cyanine dye, NK-2016; 3-Ethyl-2-[2-[2-chloro-3-[(1,3-dihydro-3-ethyl-2H-benzothiazol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]benzothiazolium iodide; 3H-Benzothiazolium, 2-[2-[2-chloro-3-[2-(3-ethyl-3H-benzothiazol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-ethyl-, iodide (1:1)
EINECS	Contact for details

Quality Control

Our production of this high-purity cyanine dye adheres to stringent quality protocols. Each batch undergoes comprehensive analysis including HPLC for purity and impurity profiling, spectrophotometric verification of key optical properties (λmax, ε), and identity confirmation. We provide detailed Certificates of Analysis (COA) with all shipments to ensure traceability and compliance with your research or manufacturing specifications.

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). Prolonged exposure to light, heat, or moisture should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Absorption Max (λmax)	Specified per grade
Extinction Coefficient (ε)	Specified per grade

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