Description

2,2'-[(3,3'-Dimethoxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Iminoethylene)]Bis(1,3,3-Trimethyl-3H-Indolium) Bis[Tetrafluoroborate(1-)] is a high-purity, functional organic salt belonging to the class of cyanine dyes and cationic chromophores. This compound matters for its exceptional utility as a key intermediate and functional dye in advanced material science and photonics. It is primarily needed by manufacturers in the optical data storage, non-linear optics (NLO), and specialty chemical synthesis sectors, where precise molecular structure dictates performance.

Application

• Optical Data Storage Media: As a functional dye layer in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD±R).
• Non-Linear Optical (NLO) Materials: A key chromophore for developing materials with electro-optic properties for photonic devices and optical switching.
• Laser Dye and Sensitizer: Used in the formulation of tunable dye lasers and as a photosensitizer in various photochemical applications.
• Biomedical Imaging and Staining: Potential application as a fluorescent probe or stain for cellular imaging and diagnostic assays due to its cationic and chromophoric nature.
• Organic Semiconductor Research: Investigated as a component in organic light-emitting diodes (OLEDs) or photovoltaic cells for its charge transport and light-absorbing characteristics.
• Anti-Counterfeiting Inks: Utilized in security printing and brand protection inks due to its specific optical properties.
• Academic and R&D: Serves as a crucial building block for synthesizing more complex cyanine dyes and studying structure-property relationships.

Basic Information

Product Name	2,2'-[(3,3'-Dimethoxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Iminoethylene)]Bis(1,3,3-Trimethyl-3H-Indolium) Bis[Tetrafluoroborate(1-)]
CAS No.	85391-36-2
Molecular Formula	C44H52B2F8N4O2
Molecular Weight	842.33 g/mol
Synonyms	Bis[2-[4-[[2-(1,3,3-trimethyl-2-indolinylidene)ethyl]amino]-3-methoxyphenyl]ethenyl]-1,3,3-trimethylindolium tetrafluoroborate; Cyanine dye, NK-2016; Cationic cyanine dye with tetrafluoroborate anion; 1,1'-(3,3'-Dimethoxy-4,4'-biphenylylene)bis[2-(1,3,3-trimethyl-2-indolinylidene)ethane] bis(tetrafluoroborate); NK 2016; Optical disc dye NK-2016; Heptamethine cyanine dye salt; 4,4'-[1E,1'E]-[3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diylbis(azan-1-yl-1-ylidene)]bis[1,3,3-trimethyl-3H-indolium] bis(tetrafluoroborate)
EINECS	Contact for details

Quality Control

Our production of this specialty cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability for critical applications like optical media. Quality is verified through advanced analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and relevant physical properties is provided with each 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). 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 crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0% (Area Percent)
UV-Vis Absorption (λmax)	Within specified range (e.g., 650-670 nm in suitable solvent)
Moisture Content (KF)	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

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