Description

2-[(1E,3Z)-3-Chloro-5-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)-1,3-Pentadienyl]-1,3,3-Trimethyl-3H-Indolium Perchlorate is a high-purity, functional organic salt belonging to the cyanine dye family, valued for its strong near-infrared (NIR) absorption and fluorescence properties. This compound is essential for advanced research and development in photonics and materials science, where precise optical characteristics are critical. It is primarily sought by manufacturers and researchers in the optical data storage, laser technology, and biomedical imaging sectors for its role as a key functional material.

Application

• Optical Data Storage Media: As a functional dye layer in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD±R).
• Laser Technology: As a saturable absorber or gain medium in tunable dye lasers operating in the NIR spectrum.
• Non-Linear Optics (NLO): A key chromophore for developing materials with high third-order optical non-linearity for optical switching and limiting applications.
• Biomedical Imaging & Photodynamic Therapy (PDT): Potential use as a NIR-fluorescent probe or photosensitizer for deep-tissue imaging and targeted cancer treatments.
• Organic Photovoltaics (OPV) & Sensors: As an electron donor/acceptor material in thin-film solar cells or as an active layer in chemical/biological sensors.
• Security Inks & Anti-Counterfeiting: Utilized in specialized inks for banknotes, documents, and high-value products due to its unique optical signature.

Basic Information

Product Name	2-[(1E,3Z)-3-Chloro-5-(1,3,3-Trimethyl-1,3-Dihydro-2H-Indol-2-Ylidene)-1,3-Pentadienyl]-1,3,3-Trimethyl-3H-Indolium Perchlorate
CAS No.	112324-77-3
Molecular Formula	C29H32ClN2O4
Molecular Weight	507.03 g/mol
Synonyms	IR-125; 1,3,3-Trimethyl-2-[(1E,3Z)-3-chloro-5-(1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene)penta-1,3-dien-1-yl]-3H-indol-1-ium perchlorate; 2-[3-Chloro-5-(1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl]-1,3,3-trimethyl-3H-indol-1-ium perchlorate; 3H-Indolium, 2-[(1E,3Z)-3-chloro-5-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)-1,3-pentadien-1-yl]-1,3,3-trimethyl-, perchlorate; Cyanine dye IR-125; NIR dye 125; Heptamethine cyanine dye with perchlorate counterion
EINECS	Contact for details

Quality Control

Our production of this specialty cyanine dye adheres to stringent quality protocols to ensure batch-to-batch consistency and optimal performance in sensitive applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to verify identity, purity, and critical optical properties. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and spectral data is provided with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as argon or nitrogen. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax in Methanol: 780 - 800 nm
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 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.