Description

1-Butyl-2-((E)-3-[1-Butylbenzo[Cd]Indol-2(1H)-Ylidene]-1-Propenyl)Benzo[Cd]Indolium Tetrafluoroborate is a high-purity, near-infrared (NIR) absorbing cyanine dye salt, valued for its exceptional photostability and sharp absorption profile. This compound is critical for applications requiring precise light absorption and energy transfer in advanced materials and optical systems. It is primarily utilized by manufacturers and researchers in the photonics, optical data storage, and non-linear optics industries.

Application

• Optical Data Storage Media: As a key NIR-absorbing dye for recordable (R) and rewritable (RW) optical discs, including CD-R, DVD-R, and Blu-ray formats.
• Non-Linear Optical (NLO) Materials: A functional chromophore for developing materials with high second- and third-order optical non-linearity for photonic devices.
• Laser Technology: Used in the formulation of dye-doped polymers and glasses for solid-state dye lasers and optical limiters.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer due to its strong light absorption in the therapeutic window.
• Security Inks and Dyes: Employed in covert marking and anti-counterfeiting features for high-value documents and products.
• Organic Photovoltaics (OPV) & Sensors: Serves as an active layer component in research for NIR-sensitive organic solar cells and chemical sensors.

Basic Information

Product Name	1-Butyl-2-((E)-3-[1-Butylbenzo[Cd]Indol-2(1H)-Ylidene]-1-Propenyl)Benzo[Cd]Indolium Tetrafluoroborate
CAS No.	143185-79-9
Molecular Formula	C34H37BF4N2
Molecular Weight	560.48 g/mol
Synonyms	1-Butyl-2-[(1E)-3-(1-butyl-1H-benz[cd]indol-2(3H)-ylidene)-1-propen-1-yl]-1H-benz[cd]indolium tetrafluoroborate(1-); Cyanine Dye 143185-79-9; NIR Cyanine Dye Tetrafluoroborate Salt; Benzo[cd]indolium, 1-butyl-2-[(1E)-3-(1-butyl-1,3-dihydro-2H-benz[cd]indol-2-ylidene)-1-propen-1-yl]-, tetrafluoroborate(1-); 2-[3-(1-Butyl-1,3-dihydro-2H-benz[cd]indol-2-ylidene)-1-propenyl]-1-butyl-benz[cd]indolium tetrafluoroborate
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to confirm identity, purity, and spectral properties. Certificates of Analysis (COA) detailing all critical specifications are available upon request, supporting your quality assurance and regulatory documentation 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 subdued light or in amber glass containers to prevent degradation. Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax conforms
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition (Sulfated Ash)	≤ 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.