Description

3-Allyl-5-[2-(3-Ethylbenzothiazol-2(3H)-Ylidene)-1-Phenylethylidene]-2-[(3-Ethyl-4,5-Diphenylthiazol-2(3H)-Ylidene)Methyl]-4-Oxothiazolium Iodide is a high-purity, specialized organic salt belonging to the cyanine dye class, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is engineered for applications requiring precise photophysical characteristics and excellent batch-to-batch consistency. It is a critical material for researchers and manufacturers in advanced fields such as optical data storage, photodynamic therapy, and non-linear optics.

Application

• Optical Data Storage Media: As a key NIR-absorbing dye for recordable (CD-R, DVD-R) and high-density optical storage discs.
• Photodynamic Therapy (PDT) Agents: Serves as a potential photosensitizer precursor for cancer treatment research, leveraging its light-activated properties.
• Non-Linear Optical (NLO) Materials: Used in the development of advanced materials for optical switching, limiting, and frequency conversion.
• Laser Dye and Sensor Development: Functions as a tunable dye for laser systems and as a fluorescent probe or marker in chemical and biological sensing applications.
• Organic Photovoltaic (OPV) Research: Investigated as an electron donor or acceptor material in the active layer of solar cells due to its absorption profile.
• Professional Imaging and Printing: Employed in specialty inks and coatings for security printing or infrared photography.

Basic Information

Product Name	3-Allyl-5-[2-(3-Ethylbenzothiazol-2(3H)-Ylidene)-1-Phenylethylidene]-2-[(3-Ethyl-4,5-Diphenylthiazol-2(3H)-Ylidene)Methyl]-4-Oxothiazolium Iodide
CAS No.	84434-28-6
Molecular Formula	C48H40N3O S3 I
Molecular Weight	898.92 g/mol
Synonyms	NK-2014; Cyanine dye NK-2014; 3-Allyl-2-((3-ethyl-4,5-diphenylthiazol-2(3H)-ylidene)methyl)-5-((E)-2-((E)-3-ethylbenzothiazol-2(3H)-ylidene)-1-phenylethylidene)thiazolidin-4-one iodide; NIR Cyanine Dye; Heptamethine cyanine dye derivative; Optical Storage Dye 84434-28-6
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye is produced and analyzed under strict quality management systems. We employ advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to verify identity, purity, and critical photophysical specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and absorption/emission maxima is provided with each shipment to ensure it meets your precise research or production requirements.

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 sealed 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)	≥ 97.0% (Area Percent)
λmax (Absorption)	760 - 780 nm (in suitable solvent)
Loss on Drying	≤ 1.0 %
Residue on Ignition (Sulfated Ash)	≤ 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.