Description

Benzoselenazolium, 5-Methoxy-2-[[5-Methyl-3-(3-Sulfopropyl)-2(3H)-Benzoselenazolylidene]Methyl]-3-(3-Sulfopropyl)-, Inner Salt, Sodium Salt is a specialized organic selenium compound belonging to the cyanine dye family, valued for its unique photophysical properties. This product is engineered for applications requiring precise light absorption and emission characteristics in the near-infrared spectrum. It is primarily sought by manufacturers and research institutions in the advanced materials, optical sensor development, and specialized photographic industries for its role as a functional dye and sensitizer.

Application

• Optical Sensor and Detector Manufacturing: Used as a key sensitizing agent in the production of near-infrared (NIR) sensors and photodetectors.
• Advanced Imaging Systems: Serves as a functional dye in non-invasive medical imaging and diagnostic equipment.
• Photographic Sensitizers: Employed in specialized photographic emulsions and films designed for specific spectral sensitivity.
• Laser and Optical Device Research: A critical component in research for developing new laser dyes and optical materials.
• Material Science Research: Used in academic and industrial R&D for studying charge transfer and photoconductive properties in novel materials.

Basic Information

Product Name	Benzoselenazolium, 5-Methoxy-2-[[5-Methyl-3-(3-Sulfopropyl)-2(3H)-Benzoselenazolylidene]Methyl]-3-(3-Sulfopropyl)-, Inner Salt, Sodium Salt
CAS No.	70679-43-5
Molecular Formula	C25H29N2O7S2SeNa
Molecular Weight	627.58 g/mol (approx.)
Synonyms	5-Methoxy-2-[[5-methyl-3-(3-sulfopropyl)-2(3H)-benzoselenazolylidene]methyl]-3-(3-sulfopropyl)benzoselenazolium hydroxide, inner salt, sodium salt; NK-2014; Selenium Cyanine Dye NK-2014; Benzoselenazolium Cyanine Dye; NIR Cyanine Dye; 3H-Benzoselenazolium, 5-methoxy-2-[[5-methyl-3-(3-sulfopropyl)-2(3H)-benzoselenazolylidene]methyl]-3-(3-sulfopropyl)-, hydroxide, inner salt, sodium salt
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty chemical adheres to stringent Good Manufacturing Practice (GMP) principles. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for spectral verification, and elemental analysis, to ensure consistent performance and composition. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

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 tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to reference spectrum
Identification (UV-Vis)	λmax conforms to reference
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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