Description

Benzothiazolium, 5-Cyano-2-[2-[5-Chloro-3-Ethyl-2(3H)-Benzothiazolylidene) Methyl]-1-Butenyl]-3-(3-Sulfopropyl)-, Inner Salt is a specialized organic salt and a functional dye intermediate characterized by its complex benzothiazole-based structure. This compound is valued for its unique photophysical and electronic properties, making it a critical precursor in advanced material synthesis. It is primarily sought by manufacturers in the dye and pigment, optical material, and specialty chemical industries for research and production.

Application

• Synthesis of Near-Infrared (NIR) Absorbing Dyes: A key intermediate for producing cyanine and polymethine dyes used in optical recording media, laser filters, and security inks.
• Fluorescent Probe Development: Utilized in the research and manufacture of fluorescent markers and sensors for biological imaging and diagnostic applications.
• Non-Linear Optical (NLO) Materials: Serves as a building block for organic compounds with applications in photonics, telecommunications, and optical data storage.
• Photovoltaic and Solar Cell Research: Investigated as a component in dye-sensitized solar cells (DSSCs) and other light-harvesting assemblies due to its light-absorbing characteristics.
• Specialty Pigments for High-Tech Coatings: Used in formulating advanced pigments for coatings requiring specific spectral properties or durability.
• Academic and Industrial R&D: A valuable reagent for chemical research focused on heterocyclic chemistry, dye chemistry, and material science.

Basic Information

Item	Details
Product Name	Benzothiazolium, 5-Cyano-2-[2-[5-Chloro-3-Ethyl-2(3H)-Benzothiazolylidene) Methyl]-1-Butenyl]-3-(3-Sulfopropyl)-, Inner Salt
CAS No.	51859-32-6
Molecular Formula	C24H24ClN3O3S2
Molecular Weight	510.05 g/mol
Synonyms	5-Cyano-2-[2-[5-chloro-3-ethyl-2(3H)-benzothiazolylidene)methyl]-1-butenyl]-3-(3-sulfopropyl)benzothiazolium, inner salt; Cyanine dye intermediate; Benzothiazolium salt; 51859-32-6; 5-Cyano-2-[2-[(5-chloro-3-ethyl-2-benzothiazolinylidene)methyl]-1-butenyl]-3-(3-sulfopropyl)benzothiazolium hydroxide, inner salt; NIR dye precursor; Sulfo-cyanine dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your R&D and quality assurance processes.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed in a dry environment and handled under conditions that minimize exposure to ambient light and humidity to maintain stability.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 3.0%
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.