Description

5-Chloro-2-[2-[(5-Chloro-3-Ethyl-2(3H)-Benzothiazolylidene)Methyl]-1-Butenyl]-3-(4-Sulfobutyl)Benzoxazolium,Inner Salt is a specialized heterocyclic organic compound belonging to the class of benzothiazole and benzoxazolium derivatives. This compound is valued for its unique photophysical properties, making it a critical functional material in advanced technological applications. It is primarily sought by manufacturers and researchers in the photographic, optical, and dye-sensitized solar cell (DSSC) industries.

Application

• Photosensitizer in Dye-Sensitized Solar Cells (DSSCs): A key component for absorbing light and initiating electron transfer in next-generation photovoltaic devices.
• Optical Recording Media: Used in the formulation of advanced dyes for high-density optical data storage discs (e.g., CD-R, DVD-R).
• Photographic Sensitizing Dye: Enhances the spectral sensitivity of silver halide photographic emulsions for specific color or black-and-white film applications.
• Non-Linear Optical (NLO) Materials: A potential candidate for use in electro-optic modulators and frequency conversion devices due to its molecular structure.
• Laser Dyes and Fluorescent Probes: Can be utilized in tunable dye lasers or as a fluorescent marker in specific research applications.
• Chemical Intermediate: Serves as a sophisticated building block for synthesizing more complex functional dyes and organic electronic materials.

Basic Information

Product Name	5-Chloro-2-[2-[(5-Chloro-3-Ethyl-2(3H)-Benzothiazolylidene)Methyl]-1-Butenyl]-3-(4-Sulfobutyl)Benzoxazolium,Inner Salt
CAS No.	85238-31-9
Molecular Formula	C25H26Cl2N2O4S2
Molecular Weight	553.52 g/mol
Synonyms	5-Chloro-2-[2-[(5-chloro-3-ethyl-2(3H)-benzothiazolylidene)methyl]-1-butenyl]-3-(4-sulfobutyl)benzoxazolium hydroxide, inner salt; NK 5576; NK-5576; Dye NK 5576; 5-Chloro-2-[2-[(5-chloro-3-ethyl-2-benzothiazolinylidene)methyl]-1-butenyl]-3-(4-sulfobutyl)benzoxazolium hydroxide, inner salt; 5-Chloro-2-[2-[(5-chloro-3-ethyl-2(3H)-benzothiazolylidene)methyl]-1-buten-1-yl]-3-(4-sulfobutyl)-1,3-benzoxazol-3-ium, inner salt.
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, UV-Vis spectroscopy for absorbance profile verification, and elemental analysis. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications for assay, identity, and impurity levels.

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 hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed in a desiccated environment and opened under minimum light exposure to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
UV-Vis Absorption (λmax)	Within specified range
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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