Description

2-[2-[2-Chloro-3-[2-(3-ethyl-1,3-dihydro-1,1-dimethyl-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-3-ethyl-1,1-dimethyl-1H-benz[e]indolium tetrafluoroborate(1-) is a specialized near-infrared (NIR) cyanine dye salt, valued for its strong light absorption and fluorescence properties in specific spectral ranges. This compound is critical for applications requiring precise photophysical characteristics, such as optical data storage, laser technology, and advanced imaging. It serves as a key functional material for researchers and manufacturers in the photonics, electronics, and high-tech materials sectors.

Application

• Optical Data Storage Media: As a functional dye layer in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD-R).
• Laser Technology: As a gain medium or saturable absorber in tunable dye lasers operating in the near-infrared region.
• Non-Linear Optics (NLO): For research and development of materials with specific electro-optical properties.
• Photodynamic Therapy (PDT) Research: As a potential photosensitizer in experimental medical and biological studies.
• Molecular Probes & Sensors: For developing fluorescent markers and chemosensors in analytical chemistry and bio-imaging.
• Organic Photovoltaic (OPV) Research: As an electron donor or acceptor material in experimental solar cell architectures.

Basic Information

Product Name	2-[2-[2-Chloro-3-[2-(3-ethyl-1,3-dihydro-1,1-dimethyl-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-3-ethyl-1,1-dimethyl-1H-benz[e]indolium tetrafluoroborate(1-)
CAS No.	193687-63-7
Molecular Formula	C39H42BClF4N2
Molecular Weight	660.83 g/mol
Synonyms	IR-1250 Dye; Cyanine dye, NIR; 2-[2-[2-Chloro-3-[(1E,3E)-4-(3-ethyl-1,1-dimethyl-1,3-dihydro-2H-benz[e]indol-2-ylidene)but-1-en-1-yl]-1-cyclohex-1-en-1-yl]ethenyl]-3-ethyl-1,1-dimethyl-1H-benz[e]indolium tetrafluoroborate; 1H-Benz[e]indolium, 2-[2-[2-chloro-3-[(1E,3E)-4-(3-ethyl-1,1-dimethyl-1,3-dihydro-2H-benz[e]indol-2-ylidene)-1-buten-1-yl]-1-cyclohexen-1-yl]ethenyl]-3-ethyl-1,1-dimethyl-, tetrafluoroborate(1-); NIR Cyanine Dye Salt; Benz[e]indolium dye; Tetrafluoroborate salt of a heptamethine cyanine dye
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to strict quality management protocols. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to confirm identity, purity, and photophysical properties. Certificates of Analysis (COA) detailing batch-specific results are provided to ensure traceability and meet the exacting requirements of research and high-tech manufacturing.

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 hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	Conforms (λmax in NIR region)
Purity (HPLC)	≥ 98.0% (Area %)
Water 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.