Description

5-Chloro-2-[(5-Chloro-3-(4-Sulfobutyl)-2(3H)-Benzothiazolylidene)-2- Methyl- 1-Propenyl]-3-(4-Sulfobutyl)- Benzothiazolium Hydroxide, Inner Salt, Sodium Salt is a high-purity, functional benzothiazolium dye intermediate. This compound is valued for its role as a key precursor in synthesizing specialized cyanine dyes and other advanced colorants. It is primarily required by manufacturers in the photographic, optical data storage, and biomedical imaging sectors for producing high-performance sensitizers and fluorescent probes.

Application

• Cyanine Dye Synthesis: A critical intermediate for manufacturing near-infrared (NIR) and infrared (IR) cyanine dyes used in photographic films and optical recording media.
• Biomedical Imaging: Used in the production of fluorescent labeling agents and probes for bioassays, flow cytometry, and in vivo imaging applications.
• Laser Technology: Serves as a precursor for dyes utilized in tunable dye lasers and other photonic devices.
• Analytical Chemistry: Employed in the development of chemical sensors and indicators due to its specific spectral properties.
• Optical Data Storage: A key component in the formulation of light-sensitive layers for advanced optical discs and holographic storage materials.
• Textile & Specialty Inks: Can be used to develop specialized, high-stability colorants for niche industrial printing and dyeing processes.

Basic Information

Product Name	5-Chloro-2-[(5-Chloro-3-(4-Sulfobutyl)-2(3H)-Benzothiazolylidene)-2- Methyl- 1-Propenyl]-3-(4-Sulfobutyl)- Benzothiazolium Hydroxide, Inner Salt, Sodium Salt
CAS No.	30457-67-1
Molecular Formula	C26H29Cl2N2O6S3Na
Molecular Weight	663.57 g/mol (approx.)
Synonyms	5-Chloro-2-[(5-chloro-3-(4-sulfobutyl)-2(3H)-benzothiazolylidene)-2-methyl-1-propenyl]-3-(4-sulfobutyl)benzothiazolium hydroxide inner salt sodium salt; Benzothiazolium, 5-chloro-2-[(5-chloro-3-(4-sulfobutyl)-2(3H)-benzothiazolylidene)-2-methyl-1-propenyl]-3-(4-sulfobutyl)-, hydroxide, inner salt, sodium salt; Cyanine dye intermediate 30457-67-1; Sodium 5,5'-dichloro-3,3'-bis(4-sulfobutyl)thiacyanine; NK 2015 (potential trade name); IR-1061 precursor; NIR dye intermediate.
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. 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, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
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	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%

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