Description

3-(3-Sulfopropyl)-2-(2-((3-Sulfopropyl)-2-(3H)-Benzothiazolylidene)Methyl)-1-Butenyl)-Benzothiazolium Hydroxide, Inner Salt, Sodium Salt is a high-purity, water-soluble cyanine dye salt, recognized for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is a critical functional material valued for its photostability and ability to act as a sensitive probe or sensitizer. It is primarily sought by manufacturers and researchers in the photographic, optical data storage, and biomedical imaging sectors. The product, identified by CAS No. 27969-54-6, is supplied to meet the stringent demands of advanced technological applications.

Application

• Optical Data Storage Media: As a key dye component in recordable CD-R and DVD-R discs for laser writing and reading.
• Photographic Sensitizers: Used in silver halide photographic films and papers to extend spectral sensitivity into the red and infrared regions.
• Biomedical Imaging & Diagnostics: Employed as a fluorescent label or probe in NIR fluorescence imaging, flow cytometry, and immunoassays due to its deep tissue penetration.
• Laser & Nonlinear Optical Materials: Incorporated into dye lasers and optical limiters for its tunable absorption and emission characteristics.
• Solar Energy Conversion: Investigated for use in dye-sensitized solar cells (DSSCs) as a light-harvesting sensitizer.
• Security Inks & Markings: Utilized in covert security printing and anti-counterfeiting features because of its specific infrared fluorescence.

Basic Information

Item	Details
Product Name	3-(3-Sulfopropyl)-2-(2-((3-Sulfopropyl)-2-(3H)-Benzothiazolylidene)Methyl)-1-Butenyl)-Benzothiazolium Hydroxide, Inner Salt, Sodium Salt
CAS No.	27969-54-6
Molecular Formula	C26H27N2O6S3Na
Molecular Weight	598.68 g/mol
Synonyms	NK-2016; IR-1061; Benzothiazolium, 3-(3-sulfopropyl)-2-((2-((3-(3-sulfopropyl)-2(3H)-benzothiazolylidene)methyl)-1-butenyl))-, hydroxide, inner salt, sodium salt; 3H-Benzothiazolium, 2-[2-[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]methyl]-1-butenyl]-3-(3-sulfopropyl)-, hydroxide, inner salt, sodium salt; Cyanine dye NK-2016; NIR dye IR-1061; Sodium 3-(3-sulfopropyl)-2-((E)-2-((E)-3-(3-sulfopropyl)benzo[d]thiazol-2(3H)-ylidene)methyl)but-1-en-1-yl)benzo[d]thiazol-3-ium-3-olate
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed for critical parameters including identity, purity, and spectral characteristics. A comprehensive Certificate of Analysis (COA) detailing assay results, absorbance/fluorescence maxima, 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 product is hygroscopic (moisture-sensitive); ensure the container is sealed immediately after use to prevent absorption of atmospheric moisture, which can affect performance.

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%
λabs max (in solution)	1050 - 1070 nm
λem max (in solution)	Contact for details
Water 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.