Description

3-Ethyl-2-[2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]Benzoselenazolium Iodide is a specialized organic selenium compound belonging to the cyanine dye family, valued for its unique photophysical properties. This compound matters for its role as a key intermediate and sensitizer in advanced materials science and optical applications. It is primarily needed by manufacturers and researchers in the fields of non-linear optics (NLO), photodynamic therapy (PDT) research, and as a spectral sensitizer for photographic emulsions and semiconductor materials.

Application

• Spectral Sensitizer for Silver Halide Photography: Extends the spectral sensitivity of photographic emulsions into the near-infrared region.
• Non-Linear Optical (NLO) Materials: Used in the research and development of materials for optical limiting, frequency doubling, and electro-optic modulation.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for cancer treatment due to its ability to generate reactive oxygen species upon light activation.
• Organic Semiconductor Research: Serves as a building block or dopant in the development of organic light-emitting diodes (OLEDs) and photovoltaic cells.
• Laser Dye and Optical Recording Media: Applied in the formulation of dyes for tunable lasers and as a component in optical data storage systems.
• Chemical Synthesis Intermediate: Utilized in the synthesis of more complex cyanine dyes and selenium-containing heterocyclic compounds for specialized applications.

Basic Information

Product Name	3-Ethyl-2-[2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]Benzoselenazolium Iodide
CAS No.	909-64-8
Molecular Formula	C24H27IN2Se2
Molecular Weight	661.21 g/mol
Synonyms	3-Ethyl-2-[2-[(3-ethylbenzoselenazol-2(3H)-ylidene)methyl]but-1-en-1-yl]benzoselenazol-3-ium iodide; 3,3'-Diethyl-2,2'-thiatricarbocyanine iodide (selenium analog); Selenocyanine dye; Dye 909-64-8; 3-Ethyl-2-[(1E,3E)-4-(3-ethyl-1,3-benzoselenazol-2(3H)-ylidene)but-1-en-1-yl]-1,3-benzoselenazol-3-ium iodide; NK-2014 (potential research code); Benzoseleazolium, 3-ethyl-2-[2-[(3-ethyl-3H-benzoselenazol-2-ylidene)methyl]-1-butenyl]-, iodide
EINECS	Contact for details

Quality Control

Our 3-Ethyl-2-[2-[(3-Ethyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]Benzoselenazolium Iodide is produced under strict quality protocols to ensure batch-to-batch consistency and high purity for research and industrial applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and elemental analysis. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 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.