Description

3-Ethyl-5,6-Dimethyl-2-[2-[[5-Methyl-3-(2-Methyl-3-Sulphonatopropyl)-3H-Benzoselenazol-2-Ylidene]Methyl]But-1-Enyl]Benzothiazolium is a specialized organic salt featuring a benzothiazolium core conjugated with a benzoselenazolylidene moiety, imparting unique photophysical and electronic properties. This compound is valued for its role as a key intermediate in the synthesis of advanced functional dyes and as a potential photosensitizer. It is primarily sought by research institutions and industrial manufacturers in the fields of optical materials, dye chemistry, and photodynamic therapy research. The product is supplied with a high level of purity to meet the stringent requirements of these advanced applications.

Application

• Photosensitizer Precursor: A critical intermediate in the synthesis of novel photosensitizers for photodynamic therapy (PDT) research and development.
• Functional Dye Synthesis: Used in the manufacturing of specialized cyanine and polymethine dyes for optical recording media, laser dyes, and non-linear optical materials.
• Fluorescent Probe Development: Serves as a building block for creating near-infrared (NIR) fluorescent probes and labels for bioimaging and diagnostic assays.
• Organic Semiconductor Research: Investigated as a component in organic light-emitting diodes (OLEDs) and photovoltaic cells due to its electron-donating and charge-transfer characteristics.
• Chemical Sensor Fabrication: Employed in the development of selective chemical sensors that respond to changes in light absorption or emission.
• Academic & Industrial R&D: A valuable reagent for fundamental research in heterocyclic chemistry, selenium chemistry, and the photochemistry of organic salts.

Basic Information

Product Name	3-Ethyl-5,6-Dimethyl-2-[2-[[5-Methyl-3-(2-Methyl-3-Sulphonatopropyl)-3H-Benzoselenazol-2-Ylidene]Methyl]But-1-Enyl]Benzothiazolium
CAS No.	94158-30-2
Molecular Formula	C29H35N2O3S2Se
Molecular Weight	610.68 g/mol
Synonyms	Benzothiazolium, 3-ethyl-5,6-dimethyl-2-[2-[[5-methyl-3-(2-methyl-3-sulfonatopropyl)benzoselenazol-2-ylidene]methyl]-1-butenyl]-, inner salt; Cyanine dye derivative with selenium; Selenocyanine dye intermediate; 3-Ethyl-5,6-dimethyl-2-[(1E,3E)-4-[5-methyl-3-(2-methyl-3-sulfonatopropyl)-1,3-benzoselenazol-2-ylidene]but-1-en-1-yl]-1,3-benzothiazol-3-ium; Inner salt of benzothiazolium benzoselenazolylidene dye
EINECS	Contact for details

Quality Control

Our production of this advanced chemical intermediate adheres to a strict quality management system. Each batch is characterized and tested to ensure identity, purity, and consistency. Certificates of Analysis (COA) are provided, detailing key parameters such as assay (HPLC), absorbance profile, and moisture content. We support custom synthesis and purity grade adjustments to meet specific research or production protocols.

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 compound is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to minimize exposure to atmospheric moisture. For long-term storage, consider desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Absorbance Max (λmax)	Specified range provided on COA
Heavy Metals (as Pb)	≤ 20 ppm

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