Description

1-(1,1,3-Trimethyl-1H-Benzoeindol-2-Ylidene-Methyl)-3-(1,1,3-Trimethyl-1H-Benzoeindolium-2-Yl-Methylene)-Cyclobuten-2-One-4-Olate is a sophisticated organic dye belonging to the polymethine cyanine class, characterized by its distinct benz[e]indole-derived structure. This compound matters for its exceptional photophysical properties, including strong near-infrared (NIR) absorption and high molar extinction coefficients, making it a critical functional material. It is primarily needed by manufacturers and researchers in the photonics, optical data storage, and advanced materials sectors, where precise light-matter interaction is paramount.

Application

• NIR-Absorbing Dyes: Key component in the formulation of dyes and pigments for laser optical filters, security inks, and light-absorbing coatings.
• Optical Data Storage: Utilized in the active layers of recordable optical discs (e.g., CD-R, DVD-R) for its precise light absorption characteristics.
• Non-Linear Optics (NLO): Serves as a chromophore in the development of materials for photonic devices, optical limiters, and frequency conversion applications.
• Bioimaging & Sensors: Potential use as a fluorescent probe or sensitizer in research applications due to its tunable emission in the NIR region.
• Organic Photovoltaics (OPV): Investigated as an electron donor or acceptor material in the active layer of organic solar cells.
• Photodynamic Therapy (PDT): Research candidate as a photosensitizer for targeted medical treatments.

Basic Information

Product Name	1-(1,1,3-Trimethyl-1H-Benzoeindol-2-Ylidene-Methyl)-3-(1,1,3-Trimethyl-1H-Benzoeindolium-2-Yl-Methylene)-Cyclobuten-2-One-4-Olate
CAS No.	116477-16-8
Molecular Formula	C39H38N2O2
Molecular Weight	566.73 g/mol
Synonyms	Benz[e]indolium Cyanine Dye; NIR Cyanine Dye; 1,1,3-Trimethylbenz[e]indole-based Cyanine; Cyclobutenedione Cyanine Dye; 2-[2-[1,1,3-Trimethyl-1H-benz[e]indol-2-ylidene]ethylidene]-3-[2-(1,1,3-trimethyl-1H-benz[e]indol-3-ium-2-yl)vinyl]cyclobut-2-en-4-one-1-olate; Heptamethine Cyanine Analog; Optical Storage Dye 116477-16-8
EINECS	Contact for details

Quality Control

Our production of this high-purity functional dye adheres to strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, UV-Vis-NIR spectroscopy for absorbance profile verification, and NMR for structural confirmation. Certificates of Analysis (COA) detailing lot-specific results are provided to ensure traceability and compliance with your research or manufacturing specifications.

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 sealed in a desiccated environment to prevent degradation. For long-term storage, consider an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
λmax (Absorption)	750 - 850 nm (in suitable solvent)
Moisture (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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