Description

3-Ethyl-2-[(3-Ethyl-3H-Benzothiazol-2-Ylidene)Methyl]Benzoxazolium Iodide is a high-purity organic salt belonging to the cyanine dye family, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is critical for applications requiring precise light absorption and emission characteristics in advanced materials and diagnostics. It is primarily sought by manufacturers and research institutions in the photonics, optical data storage, and biomedical imaging sectors.

Application

• NIR Fluorescent Dyes & Probes: A key chromophore for synthesizing fluorescent labels and probes used in bioimaging, flow cytometry, and in vivo diagnostics.
• Optical Data Storage Media: Used in the formulation of recording layers for high-density optical discs and holographic data storage systems.
• Laser & Photonic Materials: Acts as a gain medium or saturable absorber in tunable dye lasers and other photonic devices operating in the NIR spectrum.
• Sensitizers for Photodynamic Therapy (PDT): Investigated for use in developing photosensitizers that target cancer cells under specific light activation.
• Non-Linear Optical (NLO) Materials: Incorporated into polymers and crystals for applications in optical limiting, switching, and frequency conversion.
• Chemical Sensors: Serves as an optical sensing element for detecting specific ions, gases, or biomolecules based on colorimetric or fluorometric changes.

Basic Information

Product Name	3-Ethyl-2-[(3-Ethyl-3H-Benzothiazol-2-Ylidene)Methyl]Benzoxazolium Iodide
CAS No.	68006-75-7
Molecular Formula	C19H19IN2OS
Molecular Weight	450.33 g/mol
Synonyms	3-Ethyl-2-[(E)-2-(3-ethyl-1,3-benzothiazol-2-ylidene)ethylidene]-1,3-benzoxazolium iodide; Benzoxazolium, 3-ethyl-2-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]-, iodide; 2-[(E)-2-(3-Ethyl-1,3-benzothiazol-2(3H)-ylidene)ethylidene]-3-ethyl-1,3-benzoxazolium iodide; NIR Cyanine Dye Derivative; Cyanine dye 68006-75-7; BOX Iodide Dye; 3-Ethyl-2-methylenebenzoxazolium iodide benzothiazole derivative
EINECS	Contact for details

Quality Control

Our production of 3-Ethyl-2-[(3-Ethyl-3H-Benzothiazol-2-Ylidene)Methyl]Benzoxazolium Iodide adheres to stringent quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to verify identity, purity, and the absence of critical impurities. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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; therefore, containers must be kept sealed in a desiccated environment and handled under low-light conditions to prevent degradation.

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
Solubility Test	Freely soluble in DMSO, DMF; soluble in methanol

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