Description

3-Ethyl-2-[2-[(3-Ethyl-5-Methyl-3H-Benzothiazol-2-Ylidene)Methyl]But-1-Enyl]-5-Methylbenzothiazolium Iodide is a high-purity organic salt belonging to the benzothiazolium dye class, valued for its strong light-absorbing and fluorescent properties. This compound is a critical functional material for advanced research and industrial applications requiring precise photophysical characteristics. It is primarily sought by manufacturers and researchers in the photovoltaic, optical data storage, and non-linear optics (NLO) sectors, where its performance as a sensitizer or active layer component is essential.

Application

• Dye-Sensitized Solar Cells (DSSCs): Acts as a highly efficient photosensitizer to capture sunlight and initiate electron transfer processes.
• Optical Data Storage Media: Used in the formulation of recordable CDs and DVDs due to its specific light absorption profile.
• Non-Linear Optical (NLO) Materials: A key chromophore for developing materials used in frequency doubling, optical switching, and laser modulation.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizing agent for targeted cancer treatments.
• Fluorescent Probes and Sensors: Serves as a building block for creating sensitive chemical or biological detection systems.
• Organic Light-Emitting Diodes (OLEDs): Explored as an emissive or charge-transport layer material in display and lighting technologies.

Basic Information

Product Name	3-Ethyl-2-[2-[(3-Ethyl-5-Methyl-3H-Benzothiazol-2-Ylidene)Methyl]But-1-Enyl]-5-Methylbenzothiazolium Iodide
CAS No.	3148-90-1
Molecular Formula	C24H27IN2S2
Molecular Weight	534.51 g/mol
Synonyms	3-Ethyl-2-[(1E,3E)-4-(3-ethyl-5-methyl-2(3H)-benzothiazolylidene)-1,3-butadienyl]-5-methylbenzothiazolium iodide; Dye for CD-R; NK 5295; Styryl 9; 2-[2-[(3-Ethyl-5-methyl-2(3H)-benzothiazolylidene)methyl]but-1-en-1-yl]-3-ethyl-5-methylbenzothiazolium iodide; Benzothiazolium, 3-ethyl-2-[2-[(3-ethyl-5-methyl-3H-benzothiazol-2-ylidene)methyl]-1-butenyl]-5-methyl-, iodide (1:1)
EINECS	221-560-1

Quality Control

Our production of 3-Ethyl-2-[2-[(3-Ethyl-5-Methyl-3H-Benzothiazol-2-Ylidene)Methyl]But-1-Enyl]-5-Methylbenzothiazolium Iodide adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for sensitive applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy to confirm identity, purity, and critical photophysical properties. A comprehensive Certificate of Analysis (COA) detailing all specifications is 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 material is light-sensitive and should be handled under subdued lighting conditions to prevent degradation. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
UV-Vis Absorption (λmax)	Contact for details
Loss on Drying	≤ 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.