Description

2-[(3-Ethyl-Benzothiazolium-2-Yl)-Methylen]-3-Ethyl-2,3-Dihydrobezoselenazol Bromide is a specialized organic salt belonging to the benzothiazole and benzoselenazole class of heterocyclic compounds. This high-purity chemical is valued for its unique photophysical and electrochemical properties, making it a critical component in advanced material science and electronics. It is primarily sought by researchers and manufacturers in the organic semiconductor, dye-sensitized solar cell (DSSC), and non-linear optical material sectors.

Application

• Organic Photovoltaic (OPV) and Dye-Sensitized Solar Cell (DSSC) Research: Used as a key photosensitizer or electron transport material due to its light-harvesting properties.
• Non-Linear Optical (NLO) Materials: Serves as a chromophore in the development of materials for optical limiting, frequency doubling, and electro-optic modulation.
• Organic Light-Emitting Diodes (OLEDs): Investigated as an emissive or charge-transport layer component for next-generation display and lighting technologies.
• Chemical Sensing and Biosensing: Utilized in the design of fluorescent probes and sensors due to its selenazole moiety's sensitivity.
• Advanced Organic Synthesis: Acts as a versatile intermediate or precursor for synthesizing more complex heterocyclic systems and coordination compounds.
• Photodynamic Therapy (PDT) Research: Explored for its potential as a photosensitizer in biomedical applications.

Basic Information

Product Name	2-[(3-Ethyl-Benzothiazolium-2-Yl)-Methylen]-3-Ethyl-2,3-Dihydrobezoselenazol Bromide
CAS No.	143269-59-4
Molecular Formula	C19H19BrN2SSe
Molecular Weight	466.30 g/mol
Synonyms	2-[(3-Ethylbenzothiazol-2(3H)-ylidene)methyl]-3-ethyl-1,3-benzoselenazol-3-ium bromide; 3-Ethyl-2-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]benzoselenazolium bromide; Benzothiazolium, 2-[(3-ethyl-2,3-dihydrobenzoselenazol-2-ylidene)methyl]-3-ethyl-, bromide; SeTau-425 (common research dye name); Selenazole-based cyanine dye; Bromide salt of benzothiazole-benzoselenazole dye
EINECS	Contact for details

Quality Control

Our production of this advanced material adheres to stringent quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot undergoes comprehensive analysis, including HPLC for purity, NMR and MS for structural confirmation, and elemental analysis. A detailed Certificate of Analysis (COA) documenting 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a desiccated environment to prevent degradation. For long-term storage, consider using an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
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.