Description

Benzothiazolium,3-Ethyl-2-Ethyl-2-[[3-[(3-Ethyl-2(3H)-Benzothiazolylidene)Methyl]-5,5-Dimethyl-2-Cyclohexen-1-Ylidene]Methyl]-, Bromide is a specialized cationic dye belonging to the benzothiazole class, valued for its strong light-absorbing and fluorescent properties. This compound is critical for applications requiring precise optical characteristics and high chemical stability. It is primarily needed by manufacturers in the optical materials, laser dyes, and advanced organic electronics sectors, where performance and purity are paramount.

Application

• Laser Dye Precursor: A key intermediate in the synthesis of near-infrared (NIR) absorbing and emitting laser dyes for scientific and medical laser systems.
• Optical Data Storage: Used in the formulation of advanced materials for high-density optical discs and holographic storage media.
• Non-Linear Optical (NLO) Materials: Serves as a chromophore in the development of materials for photonics, optical switching, and frequency conversion devices.
• Organic Photovoltaic (OPV) Cells: Functions as a light-harvesting component or electron donor/acceptor material in next-generation solar cell research.
• Fluorescent Probes & Sensors: Utilized in the design of sensitive chemical and biological sensors due to its tunable fluorescence.
• Photopolymerization Initiators: Acts as a photoinitiator or co-initiator in UV-curable inks, coatings, and 3D printing resins.

Basic Information

Item	Details
Product Name	Benzothiazolium,3-Ethyl-2-Ethyl-2-[[3-[(3-Ethyl-2(3H)-Benzothiazolylidene)Methyl]-5,5-Dimethyl-2-Cyclohexen-1-Ylidene]Methyl]-, Bromide
CAS No.	70211-26-6
Molecular Formula	C31H37BrN2S2
Molecular Weight	581.67 g/mol
Synonyms	3-Ethyl-2-((E)-2-((E)-3-((E)-3-ethylbenzothiazol-2(3H)-ylidene)methyl)-5,5-dimethylcyclohex-2-en-1-ylidene)methyl)benzothiazol-3-ium bromide; Benzothiazolium dye 70211-26-6; Cyanine dye derivative; NIR Cyanine dye intermediate; 2-[2-[3-[(3-Ethyl-2-benzothiazolinylidene)methyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]ethylidene]-3-ethylbenzothiazolium bromide; 3-Ethyl-2-[2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-5,5-dimethyl-1-cyclohexene-1-yl]methylene]-3-ethylbenzothiazolium bromide
EINECS	Contact for details

Quality Control

Our production of this high-value optical material adheres to strict quality protocols to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and spectrophotometry. A Certificate of Analysis (COA) detailing purity, identity, and key optical properties is provided with every shipment to support your R&D and manufacturing quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The container should be kept in a well-ventilated area and protected from moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
λmax (Absorption)	Specification available upon request
Fluorescence Emission	Specification available upon request

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