Description

1-Ethyl-2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]-6-Methylquinolinium Iodide is a specialized organic salt belonging to the cyanine dye family, valued for its unique photophysical properties. This compound is a critical intermediate and functional material in advanced research and development, particularly where near-infrared (NIR) absorption and fluorescence are required. It is primarily sought after by researchers and manufacturers in the fields of optical materials, semiconductor research, and as a sensitizing dye for photographic and imaging applications. Its distinct molecular structure makes it a key component for developing novel functional dyes and optoelectronic devices.

Application

• Optical Sensitizer for Photographic Emulsions: Used to extend the spectral sensitivity of silver halide photographic films into the near-infrared region.
• Non-Linear Optical (NLO) Materials: Serves as a key chromophore in the development of materials for frequency doubling, optical switching, and data storage technologies.
• Semiconductor Research: Investigated as a potential dye for dye-sensitized solar cells (DSSCs) and other photoelectrochemical applications due to its light-harvesting properties.
• Laser Dye and Fluorescent Probe: Can be utilized in the formulation of tunable dye lasers and as a specialized fluorescent marker in biochemical and materials science research.
• Chemical Intermediate: Acts as a precursor for the synthesis of more complex cyanine dyes and functional organic molecules with tailored electronic properties.

Basic Information

Product Name	1-Ethyl-2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]-6-Methylquinolinium Iodide
CAS No.	63870-48-4
Molecular Formula	C22H23IN2Se
Molecular Weight	529.30 g/mol
Synonyms	1-Ethyl-2-[(3-ethylbenzoselenazol-2-ylidene)methyl]-6-methylquinolinium iodide; Quinolinium, 1-ethyl-2-[(3-ethyl-2(3H)-benzoselenazolylidene)methyl]-6-methyl-, iodide; Cyanine dye selenium analog; NIR cyanine dye; Benzoseleazolium dye; 2-[2-(1-Ethyl-6-methylquinolinium-2-yl)vinyl]-3-ethylbenzoselenazolium iodide
EINECS	Contact for details

Quality Control

Our production of 1-Ethyl-2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]-6-Methylquinolinium Iodide adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, supporting research and development traceability.

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 tightly sealed in a desiccated environment and handled under low-light conditions to maintain stability and purity.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
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.