Description

1-Ethyl-2-[(3-Ethyl-5-Methoxy-2(3H)-Benzoselenazolylidene)Methyl]-6-Methoxyquinolinium Bromide is a specialized organic salt belonging to the class of cyanine dyes, distinguished by the incorporation of selenium in its heterocyclic structure. This compound is valued for its unique photophysical properties, making it a critical functional material in advanced research and development. It is primarily sought by manufacturers and research institutions in the photonics, imaging, and specialty chemical sectors for its role as a key intermediate or active component.

Application

• As a near-infrared (NIR) sensitizing dye for photographic films and digital imaging systems.
• As a key functional component in the formulation of optical recording media and data storage materials.
• As a photosensitizer in photodynamic therapy (PDT) research and related biomedical applications.
• In the development of non-linear optical (NLO) materials and organic semiconductors.
• As a fluorescent probe or marker in biochemical and diagnostic assay development.
• For research into light-harvesting complexes and energy transfer systems.
• As a specialized intermediate in the synthesis of complex heterocyclic compounds and advanced dyes.

Basic Information

Product Name	1-Ethyl-2-[(3-Ethyl-5-Methoxy-2(3H)-Benzoselenazolylidene)Methyl]-6-Methoxyquinolinium Bromide
CAS No.	67800-88-8
Molecular Formula	C23H25BrN2O2Se
Molecular Weight	528.33 g/mol
Synonyms	2-[(1-Ethyl-6-methoxy-2(1H)-quinolinylidene)methyl]-3-ethyl-5-methoxybenzoselenazolium bromide; 1-Ethyl-2-[(3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl]-6-methoxyquinolinium bromide; Quinolinium, 1-ethyl-2-[(3-ethyl-5-methoxy-2(3H)-benzoselenazolylidene)methyl]-6-methoxy-, bromide (1:1); Selenium cyanine dye; NIR cyanine dye; Benzoseleazolium dye; Cyanine dye with selenium heterocycle.
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty chemical adheres to strict quality management protocols. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to ensure traceability and compliance with your research or manufacturing specifications.

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; containers must be kept tightly sealed in a desiccated environment to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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