Description

Quinolinium, 1-(2-Hydroxyethyl)-4-[3-(3-Methyl-2(3H)-Benzothiazolylidene)-1-Propen-1-Yl]-, Tetrafluoroborate(1-) is a specialized cationic dye and photosensitizer belonging to the cyanine dye family. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical functional material in advanced photonic and electronic applications. It is primarily sought by researchers and manufacturers in the fields of optical data storage, nonlinear optics, and as a sensitizer for dye-sensitized solar cells (DSSCs).

Application

• Optical Data Storage Media: As a key component in recordable (CD-R, DVD-R) and high-density optical storage systems due to its specific light-absorption characteristics.
• Nonlinear Optical (NLO) Materials: Used in the development of devices for optical switching, signal processing, and frequency conversion.
• Dye-Sensitized Solar Cells (DSSCs): Functions as a photosensitizer to absorb sunlight and initiate electron transfer in next-generation photovoltaic cells.
• Laser Dyes and Optical Filters: Employed in tunable dye lasers and as an active medium in specific wavelength filters.
• Biomedical Imaging Probes: Potential application in the development of NIR fluorescent tags and probes for bioimaging and diagnostic assays.
• Photopolymerization Initiators: Acts as a photoinitiator in UV-curable inks, coatings, and resins for industrial curing processes.
• Security Inks and Taggants: Utilized in anti-counterfeiting measures for currency, documents, and high-value products due to its unique spectral signature.

Basic Information

Item	Details
Product Name	Quinolinium, 1-(2-Hydroxyethyl)-4-[3-(3-Methyl-2(3H)-Benzothiazolylidene)-1-Propen-1-Yl]-, Tetrafluoroborate(1-)
CAS No.	189148-50-3
Molecular Formula	C22H23BF4N2OS
Molecular Weight	442.30 g/mol
Synonyms	1-(2-Hydroxyethyl)-4-[(E)-3-(3-methyl-2(3H)-benzothiazolylidene)-1-propen-1-yl]quinolinium tetrafluoroborate; Cyanine dye 5; NK-2014; NIR Cyanine Dye; Quinolinium, 1-(2-hydroxyethyl)-4-[3-(3-methyl-2(3H)-benzothiazolylidene)-1-propenyl]-, tetrafluoroborate(1-); 4-[3-(3-Methyl-2-benzothiazolinylidene)-1-propenyl]-1-(2-hydroxyethyl)quinolinium tetrafluoroborate
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to strict quality management protocols. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to ensure identity, purity, and performance consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and spectral properties is provided with every shipment to support your R&D and manufacturing requirements.

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
Identification (UV-Vis)	λmax conforms
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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