Description

2-Thiazolinium, 3-ethyl-2-[(3-ethyl-2-benzothiazolinylidene)methyl]-5-[7-[(3-ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-2(3H)-naphthylidene]-4-oxo-, iodide is a specialized organic salt belonging to the cyanine dye family, characterized by its extended conjugated system and near-infrared absorption properties. This compound matters for its role as a key functional material in advanced photonic and electronic applications, where precise light absorption and emission are critical. It is primarily needed by manufacturers and research institutions in the fields of optical data storage, non-linear optics, and as a sensitizer for photographic emulsions and photodynamic therapy research.

Application

• Optical Data Storage Media: Used as a light-absorbing layer in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD±R).
• Non-Linear Optical (NLO) Materials: Serves as a chromophore in the development of materials for frequency doubling, optical switching, and signal processing.
• Photographic Sensitizers: Functions as a spectral sensitizer in silver halide photographic emulsions to extend sensitivity into specific wavelength ranges.
• Laser Dye and Filter Applications: Employed in the formulation of tunable dye lasers and optical filters due to its sharp absorption bands.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer agent for cancer treatment and antimicrobial applications.
• Organic Photovoltaic (OPV) Research: Explored as an electron donor or acceptor material in the active layer of solar cell devices.
• Chemical Sensors: Utilized in the development of colorimetric or fluorometric sensors for detecting specific ions or molecules.
• Academic and Industrial R&D: Serves as a building block or reference standard for synthesizing novel functional dyes and studying structure-property relationships.

Basic Information

Product Name	2-Thiazolinium, 3-ethyl-2-[(3-ethyl-2-benzothiazolinylidene)methyl]-5-[7-[(3-ethyl-2-benzothiazolinylidene)methyl]-4,4a,5,6-tetrahydro-2(3H)-naphthylidene]-4-oxo-, iodide
CAS No.	19208-21-0
Molecular Formula	C35H34IN3OS2
Molecular Weight	727.69 g/mol
Synonyms	3-Ethyl-2-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]-5-[7-[(3-ethyl-2(3H)-benzothiazolylidene)methyl]-1,2,3,4-tetrahydro-2-naphthalenylidene]-4-oxo-2-thiazolinium iodide; NK-2014; Cyanine dye NK-2014; 2-Thiazolinium iodide derivative; Benzothiazolium dye; Naphthothiazolocyanine dye; Heptamethine cyanine dye analog; Optical storage dye
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to strict quality control protocols to ensure batch-to-batch consistency and performance reliability for critical applications. Each lot is characterized using advanced analytical techniques including HPLC, UV-Vis-NIR spectroscopy, and NMR to confirm identity, purity, and spectral properties. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and specific absorbance 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). Due to its light-sensitive nature, handling and packaging should be performed under subdued light or amber glass/containers to prevent photodegradation. Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax conforms
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Specific Absorbance	Contact for details

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