Description

3-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)-2-Methylprop-1-Enyl]Benzothiazolium p-Toluenesulphonate is a specialized organic salt belonging to the benzothiazolium dye class, valued for its distinct photophysical properties. This compound serves as a critical functional material in advanced technological applications where precise light absorption and emission characteristics are required. It is primarily sought by manufacturers and research institutions in the fields of optical data storage, nonlinear optics, and as a sensitizer or dopant in specialized coatings and polymer systems.

Application

• Optical Data Storage Media: Used as a light-absorbing layer or dye in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD-R).
• Nonlinear Optical (NLO) Materials: Employed in the research and development of materials for photonic devices, optical limiters, and frequency conversion due to its polarizable structure.
• Laser Dyes and Sensitizers: Functions as a active medium or sensitizing agent in tunable dye lasers and in photopolymerization initiator systems.
• Specialty Coatings and Inks: Incorporated into security inks, optical filters, and functional coatings where specific infrared or visible light absorption is needed.
• Organic Photoconductors (OPCs): Used in the charge generation layer of photocopiers and laser printers.
• Academic and Industrial Research: Serves as a key intermediate or standard in synthetic chemistry and materials science research for developing new functional dyes.

Basic Information

Product Name	3-Ethyl-2-[3-(3-Ethyl-3H-Benzothiazol-2-Ylidene)-2-Methylprop-1-Enyl]Benzothiazolium p-Toluenesulphonate
CAS No.	15086-20-1
Molecular Formula	C28H28N2O3S3
Molecular Weight	536.72 g/mol
Synonyms	2-[3-(3-Ethyl-2(3H)-benzothiazolylidene)-2-methyl-1-propen-1-yl]-3-ethylbenzothiazolium p-toluenesulfonate; 3-Ethyl-2-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]benzothiazolium p-toluenesulfonate (common naming variation); Benzothiazolium, 3-ethyl-2-[3-(3-ethyl-2(3H)-benzothiazolylidene)-2-methyl-1-propen-1-yl]-, p-toluenesulfonate; Cyanine dye Dye-1 (generic); Optical storage dye 15086-20-1; NK-529 (potential trade name); IR-absorbing cyanine dye; 1-Propen-1-ylbenzothiazolium derivative
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to strict quality management protocols. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy to ensure identity, strength, and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee consistency and performance for your critical applications.

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 product is light-sensitive and should be handled under appropriate 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 blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
UV-Vis Absorption (λmax)	Specified range provided per grade
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%; Any single unknown impurity ≤ 0.5%

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