Description

1,3-Bis[[4-(Dimethylamino)Phenyl]Methylene]-1,3-Dihydro-2H-Inden-2-One CAS NO 21889-12-3 is a specialized organic compound belonging to the class of polymethine dyes and indene derivatives. This chemical is valued for its unique photophysical properties, making it a critical component in advanced material science and optical applications. It is primarily sought after by manufacturers and researchers in the fields of nonlinear optics (NLO), photovoltaics, and as a precursor for functional dyes and pigments.

Application

• Nonlinear Optical (NLO) Materials: A key chromophore for developing materials with second- and third-order nonlinear optical properties used in telecommunications, optical computing, and data storage.
• Organic Photovoltaic (OPV) Cells: Functions as an electron donor or acceptor material in the active layer for converting sunlight into electricity.
• Laser Dyes and Optical Limiting: Used in the formulation of tunable laser dyes and materials designed to protect sensors from intense laser pulses.
• Chemical Sensing and Imaging: Serves as a fluorophore or signaling unit in chemosensors for detecting specific ions or molecules, and in bioimaging probes.
• Advanced Pigment Synthesis: Acts as a sophisticated intermediate for synthesizing high-performance organic pigments with specific color and stability properties.
• Academic and Industrial R&D: A valuable building block for research in organic synthesis, supramolecular chemistry, and photochemistry.

Basic Information

Product Name	1,3-Bis[[4-(Dimethylamino)Phenyl]Methylene]-1,3-Dihydro-2H-Inden-2-One
CAS No.	21889-12-3
Molecular Formula	C27H26N2O
Molecular Weight	394.51 g/mol
Synonyms	1,3-Bis[4-(dimethylamino)benzylidene]-2-indanone; 2-Indanone, 1,3-bis[[4-(dimethylamino)phenyl]methylene]-1,3-dihydro-; 1,3-Bis(p-dimethylaminobenzylidene)indan-2-one; DADB; (1E,3E)-1,3-Bis[4-(dimethylamino)benzylidene]-2-indanone; Polymethine dye derivative; NLO chromophore; Bis(DMA) indanone derivative
EINECS	Contact for details

Quality Control

Our production of 1,3-Bis[[4-(Dimethylamino)Phenyl]Methylene]-1,3-Dihydro-2H-Inden-2-One adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity, essential for sensitive optical and electronic 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, and well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive (store away from light). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark red to purple crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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