Description

2-((E)-3-(5,5-DIMETHYL-3-[(E)-3-(1,3,3-TRIMETHYL-1,3-DIHYDRO-2H-INDOL-2-YLIDENE)-1-PROPENYL]-2-CYCLOHEXEN-1-YLIDENE)-1-PROPENYL)-1,3,3-TRIMETHYL-3H-INDOLIUM TETRAFLUOROBORATE is a high-purity, functional cyanine dye salt, valued for its excellent photostability and strong near-infrared (NIR) absorption properties. This compound is a critical advanced intermediate for synthesizing specialized optical materials and sensors. It is primarily required by manufacturers in the optical data storage, laser technology, biomedical imaging, and non-linear optics sectors.

Application

• NIR-Absorbing Dye for Optical Data Storage: A key component in the formulation of recording layers for high-density CDs, DVDs, and next-generation optical discs.
• Laser Dye and Optical Limiter: Used in the development of tunable dye lasers and devices for protecting sensors from intense laser pulses.
• Biomedical Imaging Probes: Serves as a precursor for synthesizing fluorescent labels and contrast agents used in in-vivo imaging and diagnostics.
• Non-Linear Optical (NLO) Materials: An essential building block for organic crystals and polymers with applications in photonics, optical switching, and frequency conversion.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in the development of new cancer treatments.
• Chemical Sensors: Utilized in the fabrication of selective sensors for ions and gases due to its chromogenic properties.

Basic Information

Item	Information
Product Name	2-((E)-3-(5,5-DIMETHYL-3-[(E)-3-(1,3,3-TRIMETHYL-1,3-DIHYDRO-2H-INDOL-2-YLIDENE)-1-PROPENYL]-2-CYCLOHEXEN-1-YLIDENE)-1-PROPENYL)-1,3,3-TRIMETHYL-3H-INDOLIUM TETRAFLUOROBORATE
CAS No.	410536-44-6
Molecular Formula	C36H45BF4N2
Molecular Weight	608.37 g/mol
Synonyms	IR-780 Tetrafluoroborate; 1,3,3-Trimethyl-2-[(1E,3E)-3-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)prop-1-en-1-yl]-3H-indolium tetrafluoroborate (related); Cyanine dye, NIR; Heptamethine cyanine dye salt; 2-[3-[3-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]-1-propenyl]-1,3,3-trimethyl-3H-indolium tetrafluoroborate; BF4 salt of IR-780; NIR-780 BF4; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of this advanced cyanine dye adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability for critical optical applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profile is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

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, Area %)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
UV-Vis Absorption (λmax)	780 nm ± 5 nm (in suitable solvent)

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