Description

2-[2-[[5,6-Dimethyl-3-[3-(Sulphonatooxy)Propyl]-3H-Benzothiazol-2-Ylidene]Methyl]-1-Butenyl]-1-Ethylnaphtho[1,2-D]Thiazolium is a specialized, high-purity organic salt belonging to the cyanine dye family. This compound is valued for its strong light-absorbing and fluorescent properties, making it a critical functional material in advanced technological applications. It is primarily sought by manufacturers and researchers in the photographic, optical data storage, and biomedical imaging sectors for its performance as a sensitizer or probe.

Application

• Optical Data Storage Media: Used as a key light-absorbing dye layer in recordable (CD-R, DVD-R) and high-capacity optical discs.
• Photographic Sensitizers: Acts as a spectral sensitizer in silver halide photographic films and papers to extend sensitivity into specific wavelength ranges.
• Biomedical Imaging & Diagnostics: Employed in the development of fluorescent probes and labels for cellular imaging, flow cytometry, and diagnostic assays.
• Laser & Nonlinear Optical Materials: Utilized in the formulation of materials for dye lasers and applications requiring specific nonlinear optical properties.
• Security Inks and Dyes: Incorporated into inks for anti-counterfeiting, brand protection, and secure document printing due to its distinct optical signature.
• Organic Photovoltaic (OPV) Research: Investigated as a potential component in light-harvesting layers for next-generation solar cells.

Basic Information

Product Name	2-[2-[[5,6-Dimethyl-3-[3-(Sulphonatooxy)Propyl]-3H-Benzothiazol-2-Ylidene]Methyl]-1-Butenyl]-1-Ethylnaphtho[1,2-D]Thiazolium
CAS No.	83721-33-9
Molecular Formula	C31H33N2O4S3+ • (Counterion)-
Molecular Weight	Contact for details
Synonyms	NK 2012; Cyanine dye NK-2012; 1-Ethyl-2-[2-[(3-ethyl-5,6-dimethyl-2(3H)-benzothiazolylidene)methyl]-1-butenyl]naphtho[1,2-d]thiazolium 3-propanesulfonate; 1-Ethyl-2-[2-[3-ethyl-5,6-dimethyl-2(3H)-benzothiazolylidene)methyl]-1-buten-1-yl]naphtho[1,2-d]thiazolium inner salt; NK2012 sensitizing dye; Photographic sensitizing dye 83721-33-9
EINECS	Contact for details

Quality Control

Our production of this high-value cyanine dye adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and spectrophotometry to confirm identity, purity, and critical optical properties. A comprehensive Certificate of Analysis (COA) detailing all specifications 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). Keep the container sealed to protect from moisture and incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
UV-Vis Absorption (λmax)	Contact for details
Moisture Content (KF)	≤ 5.0 %
Residue on Ignition	≤ 1.0 %

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