Description

(2E)-2-[(2E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-3,4-Dihydronaphthalen-1(2H)-One is a high-purity, functional organic compound belonging to the polymethine cyanine dye family. This chemical is valued for its strong light-absorbing properties and specific electronic structure, making it a critical intermediate in advanced material synthesis. It is primarily sought after by manufacturers in the optical materials, dye, and specialty chemical industries for research and production.

Application

• Optical Material Synthesis: Key intermediate for producing near-infrared (NIR) absorbing dyes and pigments.
• Laser Technology: Used in the formulation of saturable absorbers and other components for laser systems.
• Non-Linear Optics (NLO): Serves as a building block for materials with specific electro-optical properties.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer precursor in medical research applications.
• Organic Semiconductor Development: Utilized in the research and development of organic light-emitting diodes (OLEDs) and photovoltaics.
• Analytical Chemistry: Can be employed as a spectroscopic probe or tracer in specialized analytical methods.

Basic Information

Product Name	(2E)-2-[(2E)-2-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)Ethylidene]-3,4-Dihydronaphthalen-1(2H)-One
CAS No.	53704-25-9
Molecular Formula	C25H25NO
Molecular Weight	355.48 g/mol
Synonyms	2-[2-(1,3,3-Trimethylindolin-2-ylidene)ethylidene]-3,4-dihydronaphthalen-1(2H)-one; 1,3,3-Trimethyl-2-[(1E,3E)-4-(2-oxo-3,4-dihydro-1H-naphthalen-1-ylidene)buta-1,3-dien-1-yl]-3H-indol-1-ium; Cyanine dye intermediate; NIR dye precursor; Polymethine dye; 53704-25-9; 1(2H)-Naphthalenone, 2-[(2E)-2-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)ethylidene]-3,4-dihydro-
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]-3,4-Dihydronaphthalen-1(2H)-One adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and UV-Vis spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which may affect product stability and performance.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 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.