Description

3-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Benzothiazolium Bromide is a specialized organic salt belonging to the cyanine dye family, valued for its strong light absorption and fluorescence properties in the near-infrared (NIR) region. This compound is a critical functional material for advanced optical and electronic applications, where precise photophysical characteristics are paramount. It is primarily sought by manufacturers and researchers in the fields of optical data storage, laser technology, and as a sensitizer in dye-sensitized solar cells (DSSCs).

Application

• Optical Data Storage Media: Used as a key dye component in recordable CD-R and DVD-R discs for its specific light-absorbing properties.
• Laser Dyes and Optical Filters: Serves as a gain medium in tunable dye lasers and in the fabrication of optical filters due to its sharp absorption bands.
• Dye-Sensitized Solar Cells (DSSCs): Acts as a photosensitizer to absorb sunlight and initiate electron transfer, improving cell efficiency.
• Non-Linear Optical (NLO) Materials: Employed in the research and development of materials for photonics, optical switching, and signal processing.
• Biomedical Imaging Probes: Investigated for use as a fluorescent tag in bioimaging and diagnostic assays within the NIR window.
• Photodynamic Therapy (PDT) Research: Studied as a potential photosensitizing agent for targeted cancer treatments.

Basic Information

Product Name	3-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Benzothiazolium Bromide
CAS No.	17389-14-9
Molecular Formula	C21H21BrN2S2
Molecular Weight	445.44 g/mol
Synonyms	3-Ethyl-2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]benzothiazolium bromide; NK-2014; 2-[3-(3-Ethyl-2-benzothiazolinylidene)-1-propenyl]-3-ethylbenzothiazolium bromide; Benzothiazolium, 3-ethyl-2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]-, bromide; Cyanine dye NK-2014; NIR Cyanine Dye; 1-Propenylbenzothiazolium bromide derivative
EINECS	Contact for details

Quality Control

Our production of 3-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)Prop-1-Enyl]Benzothiazolium Bromide adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, which is critical for optical performance. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. Certificates of Analysis (COA) detailing purity, identity, and key spectral properties 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 the container tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
λmax (Absorption)	Contact for details
Fluorescence Emission	Contact for details

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