Description

1,3-Bis[(E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-1,3-Dihydro-2H-Inden-2-One is a high-purity, functional organic dye belonging to the cyanine family, valued for its strong near-infrared (NIR) absorption and excellent photostability. This compound is a critical advanced material for applications requiring precise light management and energy transfer. It is primarily sought by manufacturers in the optical data storage, laser technology, photodynamic therapy, and non-linear optical material sectors.

Application

• Optical Data Storage Media: As a key NIR-absorbing dye for recordable (CD-R, DVD-R) and high-density optical discs.
• Laser Technology: Used as a saturable absorber or gain medium in tunable dye lasers operating in the NIR spectrum.
• Photodynamic Therapy (PDT): Investigated as a potential photosensitizer for targeted cancer treatments due to its light-activated properties.
• Non-Linear Optics (NLO): A component in materials for optical limiting, frequency doubling, and electro-optic modulation devices.
• Solar Energy & Photovoltaics: Employed in dye-sensitized solar cells (DSSCs) and organic photovoltaics to enhance light harvesting.
• Security Inks & Taggants: Utilized in covert markings, anti-counterfeiting features, and brand protection due to its specific spectral signature.
• Biomedical Imaging: Serves as a contrast agent or fluorescent probe in NIR fluorescence imaging for research and diagnostics.
• Chemical Sensors: Acts as a sensing element in optodes and other devices for detecting specific ions or molecules.

Basic Information

Product Name	1,3-Bis[(E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-1,3-Dihydro-2H-Inden-2-One
CAS No.	53115-05-2
Molecular Formula	C37H36N2O
Molecular Weight	524.70 g/mol
Synonyms	IR-26; IR26 Dye; 1,3-Bis[(1E,3E)-2-(1,3,3-trimethylindolin-2-ylidene)ethylidene]inden-2-one; 2H-Inden-2-one, 1,3-dihydro-1,3-bis[(1E)-2-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)ethylidene]-; 1,3-Bis[(E)-2-(1,3,3-trimethyl-2-indolinylidene)ethylidene]-1,3-dihydro-2H-inden-2-one; Cryptocyanine; NIR Dye IR-26
EINECS	Contact for details

Quality Control

Our production of 1,3-Bis[(E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-1,3-Dihydro-2H-Inden-2-One adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, UV-Vis-NIR spectroscopy for absorption profile verification, and NMR for structural confirmation. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or manufacturing requirements.

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 light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
λmax (Absorption)	~1064 nm (in suitable solvent)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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