Description

5-Ethoxy-2-[2-[(3-Ethyl-5-Methyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]-3-(3-Sulphonatopropyl)Benzothiazolium is a specialized benzothiazolium derivative featuring a benzoselenazole moiety and a sulphonatopropyl group, making it a unique functional dye and photosensitizer. This compound is valued for its distinct photophysical properties, including strong absorption and potential for fluorescence or energy transfer in advanced material systems. It is primarily sought by R&D and production teams in the photonics, organic electronics, and specialty chemical synthesis sectors for developing next-generation optical materials and sensors.

Application

• Optical Material Synthesis: A key intermediate or active component in the production of advanced dyes, pigments, and photosensitizers for non-linear optical (NLO) applications.
• Organic Photovoltaics (OPV) & Electronics: Used in research for developing light-harvesting materials, charge transport layers, or sensitizers in dye-sensitized solar cells (DSSCs).
• Biomedical Imaging & Sensing: Potential application as a fluorescent probe or contrast agent in bioimaging and diagnostic assays due to its selenazole-thiazolium structure.
• Photopolymerization Initiators: Serves as a photoinitiator or co-initiator in UV-curable coatings, inks, and resin systems for industrial curing processes.
• Chemical Research & Development: A valuable building block for synthesizing novel heterocyclic compounds and studying structure-property relationships in functional dyes.
• Laser Dye & Sensor Development: Investigated for use in tunable dye lasers and as a chemosensor material for detecting specific ions or molecules.

Basic Information

Item	Detail
Product Name	5-Ethoxy-2-[2-[(3-Ethyl-5-Methyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]-3-(3-Sulphonatopropyl)Benzothiazolium
CAS No.	55811-25-1
Molecular Formula	C27H31N2O4S2Se
Molecular Weight	598.63 g/mol
Synonyms	Benzothiazolium, 5-ethoxy-2-[2-[(3-ethyl-5-methyl-3H-benzoselenazol-2-ylidene)methyl]-1-butenyl]-3-(3-sulfopropyl)-, inner salt; 3H-Benzoselenazolium, 2-[2-(5-ethoxy-3-(3-sulfopropyl)-2-benzothiazolylidene)ethenyl]-3-ethyl-5-methyl-, hydroxide, inner salt; NK-2012; Selenazole Dye NK-2012; Photosensitizer 55811-25-1; Sulfoalkylated Benzothiazolium Selenazole Dye
EINECS	Contact for details

Quality Control

Every batch of 5-Ethoxy-2-[2-[(3-Ethyl-5-Methyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]-3-(3-Sulphonatopropyl)Benzothiazolium is manufactured under strict quality management protocols to ensure consistency and purity for research and industrial applications. Our products undergo rigorous quality testing, including spectroscopic identification and chromatographic purity analysis, to ensure compliance with specified standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and relevant physicochemical parameters is provided with each shipment.

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 black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility	Soluble in water, DMSO, methanol
UV-Vis Absorption	Characteristic spectrum provided on COA

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