Description

(2E)-2-[(2E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]Indan-1-One is a high-purity, functional organic dye intermediate belonging to the cyanine dye family, valued for its strong light absorption and fluorescence properties. This compound is essential for synthesizing advanced colorants and functional materials where precise molecular structure and purity are critical for performance. It is primarily sought by manufacturers in the optical materials, specialty dyes, and advanced organic electronics sectors.

Application

• Synthesis of Cyanine Dyes: A key precursor for producing near-infrared (NIR) absorbing and fluorescent cyanine dyes used in bioimaging and medical diagnostics.
• Optical Data Storage: Used in the formulation of recording layers for optical discs and other data storage media due to its photophysical properties.
• Laser Dyes and Photonics: Serves as a building block for tunable laser dyes and non-linear optical materials.
• Organic Photovoltaic (OPV) Cells: Employed in the research and development of light-harvesting materials for solar energy conversion.
• Sensors and Probes: Utilized in the development of chemical and biological sensors that rely on fluorescence signaling.
• Anti-Counterfeiting Inks: A component in high-security inks for currency, documents, and product authentication.

Basic Information

Product Name	(2E)-2-[(2E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]Indan-1-One
CAS No.	53704-23-7
Molecular Formula	C24H23NO
Molecular Weight	341.45 g/mol
Synonyms	2-[(2E)-2-(1,3,3-Trimethyl-2-indolinylidene)ethylidene]-1-indanone; 2-[(E)-2-[(E)-1,3,3-Trimethylindolin-2-ylidene]ethylidene]indan-1-one; 1H-Inden-1-one, 2-[(1E)-2-[(1E)-1,3,3-trimethyl-2-indolinylidene]ethylidene]-2,3-dihydro-; Cyanine dye intermediate; IR-125 precursor; Dye 53704-23-7; Trimethine cyanine derivative
EINECS	Contact for details

Quality Control

Our production of (2E)-2-[(2E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]Indan-1-One adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your R&D and manufacturing quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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