Description

5-(Diethylamino)-2-[3-[5-(Diethylamino)-1,3-Dihydro-3,3-Dimethyl-1-Propyl-2H-Indol-2-Ylidene]Prop-1-Enyl]-3,3-Dimethyl-1-Propyl-3H-Indolium Perchlorate is a high-purity, functional organic salt belonging to the cyanine dye family, specifically a pentamethine indocyanine dye. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in advanced optical applications. It is primarily sought by researchers and manufacturers in the photovoltaics, optical data storage, and biomedical imaging sectors for its role as a sensitizer and functional dye.

Application

• NIR-Sensitizer for Dye-Sensitized Solar Cells (DSSCs): Used to extend the light absorption spectrum into the near-infrared region, enhancing solar energy conversion efficiency.
• Optical Recording Media: A key dye for write-once and rewritable optical discs (e.g., CD-R, DVD-R) due to its specific light-absorption characteristics.
• Biomedical Imaging & Photodynamic Therapy (PDT): Serves as a fluorescent probe or photosensitizer for in-vivo imaging and targeted cancer treatments.
• Laser Technology: Employed as a gain medium or saturable absorber in tunable dye lasers operating in the NIR spectrum.
• Nonlinear Optical Materials: Used in the development of materials for optical limiting, switching, and frequency conversion.
• Analytical Chemistry: Functions as a staining agent or fluorescent label in specific biochemical assays and sensor applications.

Basic Information

Item	Details
Product Name	5-(Diethylamino)-2-[3-[5-(Diethylamino)-1,3-Dihydro-3,3-Dimethyl-1-Propyl-2H-Indol-2-Ylidene]Prop-1-Enyl]-3,3-Dimethyl-1-Propyl-3H-Indolium Perchlorate
CAS No.	93858-43-6
Molecular Formula	C39H57ClN4O4
Molecular Weight	681.35 g/mol
Synonyms	1-Propyl-3,3-dimethyl-2-[3-(1-propyl-3,3-dimethyl-5-diethylaminoindolin-2-ylidene)propenyl]-5-diethylaminoindolium perchlorate; Cyanine dye 5; IR-125 perchlorate; NIR-125; Pentamethine indocyanine dye; 1H-Indolium, 5-(diethylamino)-2-[3-[5-(diethylamino)-1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene]-1-propenyl]-3,3-dimethyl-1-propyl-, perchlorate; NK-125
EINECS	Contact for details

Quality Control

Our production of this specialty cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and spectral properties is provided with every shipment to support your R&D and 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). The container should be kept in a desiccator or under an inert atmosphere for long-term storage to prevent moisture uptake and degradation. Keep away from heat, sparks, and open flames due to the perchlorate content.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
λmax (Absorption)	790 nm ± 5 nm (in methanol)
Loss on Drying	≤ 1.0 %
Residue on Ignition (Sulfated Ash)	≤ 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.