Description

Benzothiazolium, 3-ethyl-2-[[3-[3-[3-[(3-ethyl-5,6-dimethoxy-2(3H)-benzothiazolylidene)methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]-1-propenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]methyl]-5,6-dimethoxy-, perchlorate is a specialized polymethine dye belonging to the benzothiazolium cyanine dye class. This compound is valued for its strong and tunable optical properties, making it a critical functional material in advanced research and industrial applications. It is primarily sought by manufacturers and researchers in the photonics, imaging, and specialty chemical sectors for its role as a photosensitizer and near-infrared (NIR) absorbing agent.

Application

• Optical Data Storage: As a key component in recordable optical media (e.g., CD-R, DVD-R) for its light-absorbing properties.
• Photodynamic Therapy (PDT): Used in medical research as a photosensitizer for targeted cancer cell treatment.
• Non-Linear Optics (NLO): Serves as a chromophore in the development of materials for optical limiting, switching, and frequency conversion.
• Laser Dyes & Sensors: Employed in the formulation of tunable dye lasers and as a fluorescent probe or marker in bio-imaging and chemical sensing applications.
• Solar Energy: Investigated for use in dye-sensitized solar cells (DSSCs) to enhance light harvesting in the NIR spectrum.
• Printing & Imaging: Used in specialty inks and photographic materials requiring specific infrared absorption characteristics.

Basic Information

Item	Details
Product Name	Benzothiazolium, 3-ethyl-2-[[3-[3-[3-[(3-ethyl-5,6-dimethoxy-2(3H)-benzothiazolylidene)methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]-1-propenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]methyl]-5,6-dimethoxy-, perchlorate
CAS No.	68220-31-5
Molecular Formula	C43H51ClN2O10S2
Molecular Weight	851.49 g/mol
Synonyms	NK-2016; IR-1061 Dye; Cryptocyanine; 3-Ethyl-5,6-dimethoxy-2-[3-[3-[3-[3-ethyl-5,6-dimethoxy-2(3H)-benzothiazolylidene]methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]-1-propenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]methyl]benzothiazolium perchlorate; Heptamethine cyanine dye; NIR dye; Benzothiazolium heptamethine cyanine perchlorate
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to stringent quality protocols. Every batch undergoes comprehensive analysis, including HPLC for purity verification, spectrophotometry for absorbance profile confirmation, and residual solvent testing. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, λmax, and moisture content to ensure batch-to-batch consistency and performance reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its properties as a strong oxidizer, keep away from combustible materials and store separately from reducing agents. The container must be kept tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
λmax (in solvent)	1050 - 1070 nm
Moisture (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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