Description

2-[2-[2-Chloro-3-[2-(3-Methyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclopenten-1-Yl]Ethenyl]-3-Methyl-Benzthiazolium is a specialized organic dye intermediate belonging to the cyanine dye family, 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 utilized by manufacturers in the optical materials, imaging, and high-performance dye industries for advanced technological applications.

Application

• Optical Data Storage Media: As a key photosensitizer or light-absorbing layer component in recordable CDs, DVDs, and Blu-ray discs.
• Laser Dyes and Filters: Used in the formulation of tunable laser dyes and optical filters for scientific and industrial laser systems.
• Non-Linear Optical (NLO) Materials: A building block for materials used in photonics, optical switching, and frequency conversion devices.
• Bioimaging and Staining: Potential use as a fluorescent probe or tag in biological research and diagnostic assays due to its chromophore structure.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer agent in medical research for targeted therapies.
• Organic Photovoltaic (OPV) Cells: A candidate material in the active layer of solar cells for light harvesting.
• Security Inks and Dyes: Employed in high-security printing applications such as banknotes and certificates for authentication.
• Chemical Sensors: Used in the development of optochemical sensors for detecting specific ions or molecules.

Basic Information

Item	Detail
Product Name	2-[2-[2-Chloro-3-[2-(3-Methyl-3H-Benzthiazol-2-Ylidene)-Ethylidene]-1-Cyclopenten-1-Yl]Ethenyl]-3-Methyl-Benzthiazolium
CAS No.	193687-61-5
Molecular Formula	C27H23ClN2S2
Molecular Weight	475.07 g/mol
Synonyms	2-[2-[2-Chloro-3-[2-(3-methyl-1,3-benzothiazol-2-ylidene)ethylidene]-1-cyclopent-1-en-1-yl]ethenyl]-3-methyl-1,3-benzothiazol-3-ium; Cyanine dye derivative; Benzothiazolium, 2-[2-[2-chloro-3-[2-(3-methyl-3H-benzothiazol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-methyl-; Pentamethine cyanine dye analog; Optical dye intermediate 193687-61-5; Heptamethine cyanine dye precursor (chlorinated); 3H-Benzothiazolium, 2-[2-[2-chloro-3-[2-(3-methyl-3H-benzothiazol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-3-methyl-
EINECS	Contact for details

Quality Control

Our production of this high-purity dye intermediate adheres to strict quality management protocols. Every batch is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to support your quality assurance and R&D processes.

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 tightly sealed in a dry environment to prevent moisture uptake and degradation.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0% (Area Percent)
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Specific Impurities (HPLC)	Individual unknown ≤ 0.5%, Total unknowns ≤ 1.5%

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