Description

3-(3-Sulfopropyl)-2-([3-[(3-Sulfopropyl)-2-Benzothiazolinylidene) Methyl]-5,5-Dimethyl-2-Cyclohexen-1-Ylidene]Methyl)Benzothiazolium Inner Salt Sodium Salt is a high-purity, functional cyanine dye intermediate with a complex polymethine structure. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced optical applications. It is primarily sought after by manufacturers and R&D teams in the photographic, optical data storage, laser dye, and biomedical imaging sectors for synthesizing specialized dyes and sensors.

Application

• NIR Fluorescent Dye Synthesis: A key precursor for manufacturing cyanine dyes used in fluorescence imaging, flow cytometry, and bio-labeling.
• Optical Data Storage Media: Used in the formulation of recording layers for high-density optical discs (e.g., CD-R, DVD-R) due to its specific light absorption characteristics.
• Laser Dye Production: Serves as an intermediate for tunable dye lasers operating in the near-infrared spectrum.
• Photographic Sensitizers: Employed in the synthesis of spectral sensitizers for silver halide photographic emulsions.
• Non-Linear Optical Materials: A building block for advanced materials used in photonics and optoelectronics research.
• Biomedical Research Probes: Used to develop contrast agents and molecular probes for in vitro and in vivo diagnostic applications.

Basic Information

Item	Details
Product Name	3-(3-Sulfopropyl)-2-([3-[(3-Sulfopropyl)-2-Benzothiazolinylidene) Methyl]-5,5-Dimethyl-2-Cyclohexen-1-Ylidene]Methyl)Benzothiazolium Inner Salt Sodium Salt
CAS No.	138623-83-3
Molecular Formula	C31H33N2O6S3Na
Molecular Weight	664.82 g/mol
Synonyms	NK-2014; NK 2014; 3H-Indolium, 2-[3-[1,3-dihydro-3,3-dimethyl-1-(3-sulfopropyl)-2H-indol-2-ylidene]propen-1-yl]-3,3-dimethyl-1-(3-sulfopropyl)-, inner salt, sodium salt; Cyanine dye NK-2014; 1,1',3,3,3',3'-Hexamethyl-4,5,4',5'-dibenzo-11-(3-sulfopropyl)indotricarbocyanine sodium salt; NIR Cyanine Dye Intermediate; Benzothiazolium, 3-(3-sulfopropyl)-2-((3-((3-(3-sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-5,5-dimethyl-2-cyclohexen-1-ylidene)methyl)-, inner salt, sodium salt
EINECS	Contact for details

Quality Control

Our production of this cyanine dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to blue-black powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
UV-Vis Absorption (λmax)	Conforms (Typically ~750-780 nm in methanol)

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