Description

1,3,3-Trimethyl-2-((E)-2-[5-[(Z)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-2H-Pyran-3(6H)-Yl]Ethenyl)-3H-Indolium Tetrafluoroborate is a high-purity, functional cyanine dye salt, valued for its exceptional photophysical properties and stability. This compound is a critical advanced intermediate for synthesizing near-infrared (NIR) absorbing and fluorescent materials. It is primarily sought by manufacturers in the optical data storage, laser technology, biomedical imaging, and specialty chemical sectors for developing next-generation functional dyes and pigments.

Application

• Optical Data Storage Media: A key chromophore for recordable (CD-R, DVD-R) and high-density optical discs due to its strong absorption in specific wavelength ranges.
• Laser Dyes & Optical Filters: Used in the formulation of tunable dye lasers and the manufacture of sharp-cut optical filters and protective lenses.
• Biomedical Imaging Probes: Serves as a precursor for synthesizing NIR fluorescent labels and contrast agents for in vivo imaging and diagnostic assays.
• Non-Linear Optical (NLO) Materials: Employed in research and development of materials for photonics, optical switching, and frequency conversion applications.
• Security Inks & Dyes: Used in anti-counterfeiting inks for banknotes, certificates, and high-security packaging because of its specific spectral signature.
• Solar Energy & Photovoltaics: Investigated as a potential sensitizer in dye-sensitized solar cells (DSSCs) due to its light-harvesting capabilities.
• Academic & Industrial R&D: A vital building block for chemists developing new functional dyes with customized properties.

Basic Information

Item	Details
Product Name	1,3,3-Trimethyl-2-((E)-2-[5-[(Z)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-2H-Pyran-3(6H)-Yl]Ethenyl)-3H-Indolium Tetrafluoroborate
CAS No.	262607-24-9
Molecular Formula	C33H35BF4N2O
Molecular Weight	562.45 g/mol
Synonyms	Cy5.5 Tetrafluoroborate salt; 1,1',3,3,3',3'-Hexamethyl-4,5,4',5'-dibenzo-2,2'-indotricarbocyanine Tetrafluoroborate; NIR Cyanine Dye BF4 Salt; 2-[5-[(1E,3Z)-3-(1,3,3-Trimethylindolin-2-ylidene)prop-1-en-1-yl]-3,4-dihydro-2H-pyran-2-ylidene]-1,3,3-trimethylindol-1-ium tetrafluoroborate; Heptamethine cyanine dye tetrafluoroborate; IR-786 Tetrafluoroborate analog; Cryptocyanine derivative
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye intermediates is produced and controlled under a strict quality management system. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles to ensure consistency and reliability for your synthesis. Our standard HPLC purity specification meets the demanding requirements of optical material and pharmaceutical intermediate manufacturers.

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 under an inert atmosphere if specified and kept in a low-humidity environment.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
UV-Vis Absorption (λmax)	Conforms (Typically ~780-800 nm in suitable solvent)

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