Description

BENZOTHIAZOLIUM, 2-[2-[2-(DIPHENYLAMINO)-3-[[3-(3-SULFOPROPYL)-2(3H)-BENZOTHIAZOLYLIDENE]ETHYLIDENE]-1-CYCLOPENTEN-1-YL]ETHENYL]-3-(3-SULFOPROPYL)-, INNER SALT, N,N-DIETHYLETHANAMINE (1:1) is a specialized, high-purity cyanine dye intermediate with a complex polymethine structure. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced optical applications. It is primarily sought by manufacturers and research institutions in the photonic materials, optical data storage, and biomedical imaging sectors for developing sensitive probes and functional dyes.

Application

• NIR Fluorescent Dye Synthesis: A key precursor for synthesizing heptamethine cyanine dyes used in bioimaging and diagnostics.
• Optical Data Storage Media: Used in the formulation of recording layers for high-density optical discs due to its specific light-absorption characteristics.
• Photodynamic Therapy (PDT) Agents: Serves as a building block for photosensitizers designed to target cancer cells.
• Laser Dye and Optical Filter Manufacturing: Employed in the production of tunable laser dyes and optical filters for scientific instrumentation.
• Non-Linear Optical (NLO) Materials: Used in research and development of materials for photonics and optoelectronics.
• Sensor Technology: A functional component in the development of chemical and biological sensors that utilize fluorescence detection.

Basic Information

Product Name	BENZOTHIAZOLIUM, 2-[2-[2-(DIPHENYLAMINO)-3-[[3-(3-SULFOPROPYL)-2(3H)-BENZOTHIAZOLYLIDENE]ETHYLIDENE]-1-CYCLOPENTEN-1-YL]ETHENYL]-3-(3-SULFOPROPYL)-, INNER SALT, N,N-DIETHYLETHANAMINE (1:1)
CAS No.	185840-01-1
Molecular Formula	C48H53N4O6S3 · C6H15N
Molecular Weight	Contact for details
Synonyms	IR-786 related benzothiazolium salt; Heptamethine cyanine dye intermediate; 2-[2-[2-(Diphenylamino)-3-[[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-(3-sulfopropyl)-benzothiazolium hydroxide, inner salt, triethylamine salt; NIR-786 precursor; Cy7-type dye derivative; Triethylamine salt of a sulfonated benzothiazolium cyanine dye; 185840-01-1
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control 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 mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your R&D and manufacturing quality systems.

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 hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC, Area %)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Absorption Max (λmax)	Contact for details

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