Description

3-Ethyl-2-[(E)-2-(3-((E)-2-[3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene]Ethylidene)-2-Phenyl-1-Cyclohexen-1-Yl)Ethenyl]-1,3-Benzothiazol-3-Ium Iodide is a high-purity cyanine dye salt, a critical functional material valued for its strong near-infrared absorption and fluorescence properties. Its primary commercial value lies in its role as a key photosensitizer and optical material, enabling advanced technological applications. This compound is essential for research and manufacturing in the photonics, biomedical imaging, and optical data storage sectors.

Application

• Optical Data Storage: As a key dye component in recordable (CD-R, DVD-R) and high-density optical storage media.
• Laser Technology: As a saturable absorber or gain medium in tunable dye lasers operating in the near-infrared region.
• Photodynamic Therapy (PDT): As a photosensitizer for cancer treatment, where it generates reactive oxygen species upon light activation.
• Bioimaging & Diagnostics: As a fluorescent probe or label for in vivo and in vitro imaging due to its NIR emission, which offers deeper tissue penetration.
• Nonlinear Optics (NLO): As an organic material for applications in optical limiting, switching, and frequency conversion.
• Solar Cells: As a potential sensitizing dye in dye-sensitized solar cells (DSSCs) to broaden the absorption spectrum.
• Academic & Industrial R&D: As a reference standard or building block for synthesizing novel functional dyes and conjugated materials.

Basic Information

Product Name	3-Ethyl-2-[(E)-2-(3-((E)-2-[3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene]Ethylidene)-2-Phenyl-1-Cyclohexen-1-Yl)Ethenyl]-1,3-Benzothiazol-3-Ium Iodide
CAS No.	70446-38-7
Molecular Formula	C35H33IN2S2
Molecular Weight	672.73 g/mol
Synonyms	IR-780 Iodide; 3-Ethyl-2-[2-[3-(2-(3-Ethyl-2(3H)-benzothiazolylidene)ethylidene)-2-phenyl-1-cyclohexen-1-yl]ethenyl]benzothiazolium Iodide; Benzothiazolium, 3-ethyl-2-[(E)-2-[3-[(E)-2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-2-phenyl-1-cyclohexen-1-yl]ethenyl]-, iodide; NIR-780; Cyanine Dye IR-780; Heptamethine Cyanine Dye IR-780 Iodide; 1,3-Benzothiazolium, 3-ethyl-2-[(E)-2-[3-[(E)-2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-2-phenyl-1-cyclohexen-1-yl]ethenyl]-, iodide
EINECS	Contact for details

Quality Control

Our 3-Ethyl-2-[(E)-2-(3-((E)-2-[3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene]Ethylidene)-2-Phenyl-1-Cyclohexen-1-Yl)Ethenyl]-1,3-Benzothiazol-3-Ium Iodide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, UV-Vis-NIR spectroscopy for absorbance profile verification, and identity confirmation via mass spectrometry. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the product under an inert atmosphere (e.g., argon or nitrogen) for long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	Conforms (λmax ~780 nm)
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0%
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.