Description

(2E,5Z)-2-[(Dimethylamino)Methylene]-5-[(2E)-2-(3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene)Ethylidene]Cyclopentanone is a sophisticated polymethine dye intermediate, valued for its precise molecular structure and photophysical properties. This compound is essential for the synthesis of advanced cyanine dyes, which are critical components in high-performance optical applications. It is primarily required by manufacturers in the photographic, optical data storage, and biomedical imaging sectors for producing materials with specific light absorption and emission characteristics.

Application

• Cyanine Dye Synthesis: A key precursor for manufacturing near-infrared (NIR) absorbing and fluorescent cyanine dyes.
• Optical Data Storage: Used in the production of recording layers for CDs, DVDs, and advanced optical discs.
• Photographic Sensitizers: Employed in the formulation of silver halide photographic emulsions to extend spectral sensitivity.
• Biomedical Imaging Probes: Integral in creating fluorescent labels and contrast agents for in vitro and in vivo diagnostics.
• Laser and Nonlinear Optical Materials: Serves as a building block for organic compounds used in laser dyes and photonic devices.
• Sensor Technology: Used in the development of chemical sensors and biosensors that rely on optical signal transduction.

Basic Information

Product Name	(2E,5Z)-2-[(Dimethylamino)Methylene]-5-[(2E)-2-(3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene)Ethylidene]Cyclopentanone
CAS No.	88340-84-5
Molecular Formula	C21H22N2OS
Molecular Weight	350.48 g/mol
Synonyms	2-[(E)-(Dimethylamino)methylene]-5-[(1E)-2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]cyclopentanone; 5-[(1E)-2-(3-Ethyl-2(3H)-benzothiazolylidene)ethylidene]-2-[(E)-(dimethylamino)methylene]cyclopentanone; Cyclopentanone, 2-[(dimethylamino)methylene]-5-[2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-, (2E,5Z)-; Cyanine dye intermediate 88340-84-5; NIR dye precursor; Benzothiazole polymethine derivative
EINECS	Contact for details

Quality Control

Our production of (2E,5Z)-2-[(Dimethylamino)Methylene]-5-[(2E)-2-(3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene)Ethylidene]Cyclopentanone adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive optical applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory needs.

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 tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.