Description

Benzothiazolium, 2-[3-[1-(2-Hydroxyethyl)-4(1H)-Quinolinylidene]-1-propen-1-yl]-3-methyl-, tetrafluoroborate(1-) is a specialized organic salt belonging to the cyanine dye family, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound matters for its role as a key functional material in advanced photonic and electronic applications, where precise light-matter interaction is critical. It is primarily needed by manufacturers and researchers in the semiconductor, optical data storage, and biomedical imaging sectors for developing next-generation sensors and devices.

Application

• NIR-Absorbing Dye for Optical Data Storage: Used in the formulation of recording layers for high-density optical discs and films.
• Semiconductor Photoinitiator: Acts as a sensitizer in photolithography and photopolymerization processes for microelectronics fabrication.
• Fluorescent Probe Development: Serves as a building block for synthesizing NIR fluorescent labels and probes for bioimaging and diagnostic assays.
• Nonlinear Optical (NLO) Materials: Incorporated into polymers and crystals for applications in optical limiting, switching, and telecommunications.
• Laser Dye and Sensor Fabrication: Utilized in the development of tunable dye lasers and chemical sensors due to its photostability and emission characteristics.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer candidate for targeted cancer therapies.

Basic Information

Product Name	Benzothiazolium, 2-[3-[1-(2-Hydroxyethyl)-4(1H)-Quinolinylidene]-1-propen-1-yl]-3-methyl-, tetrafluoroborate(1-)
CAS No.	1029939-19-2
Molecular Formula	C22H22BF4N2OS
Molecular Weight	440.29 g/mol
Synonyms	2-[3-[1-(2-Hydroxyethyl)-4(1H)-quinolinylidene]-1-propen-1-yl]-3-methylbenzothiazolium tetrafluoroborate; NIR Cyanine Dye BF4 Salt; Quinolinylidene Benzothiazolium Salt; Heptamethine Cyanine Dye Tetrafluoroborate; Photonic Cyanine Salt; Optical Storage Dye CAS 1029939-19-2; 3-Methyl-2-[(E)-3-[1-(2-hydroxyethyl)quinolin-4(1H)-ylidene]prop-1-en-1-yl]-1,3-benzothiazol-3-ium tetrafluoroborate
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 absorption/emission profile confirmation, and elemental analysis. A detailed Certificate of Analysis (COA) documenting identity, purity (typically >95%), and key performance specifications is provided with each shipment to ensure consistency 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). This material is light-sensitive (store away from light) and should be handled under inert atmosphere when appropriate to prevent degradation. Keep the container tightly sealed in a dry environment to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
λmax (Absorption)	750 - 850 nm (in suitable solvent)
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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