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 Iodide is a high-purity, functional cyanine dye salt, a critical component for advanced photonic and electronic applications. Its value lies in its exceptional light-absorbing and charge-transfer properties, enabling precise control in sophisticated material systems. This compound is essential for research and manufacturing in the semiconductor, photovoltaics, and non-linear optics (NLO) sectors, where specialized organic dyes are required.

Application

• Non-Linear Optical (NLO) Materials: A key chromophore for developing advanced materials used in optical limiting, frequency doubling, and electro-optic modulation devices.
• Dye-Sensitized Solar Cells (DSSCs): Functions as a sensitizer to absorb a broad spectrum of light and initiate electron transfer, enhancing photovoltaic efficiency.
• Organic Photovoltaics (OPV): Used as an electron donor or acceptor material in the active layer of polymer solar cells.
• Optical Data Storage: Employed in the formulation of recordable media (e.g., CD-R, DVD-R) due to its specific infrared absorption profile.
• Laser Dyes and Filters: Serves as a gain medium in tunable dye lasers or as a component in specialized optical filters.
• Biomedical Imaging Probes: Potential use as a near-infrared (NIR) fluorescent tag for in vivo imaging and diagnostic applications, subject to further biocompatibility studies.
• Photodynamic Therapy (PDT) Research: Investigated as a photosensitizer candidate for targeted cancer treatments.
• Chemical Sensing: Utilized in the development of colorimetric or fluorometric sensors for detecting specific ions or molecules.

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 Iodide
CAS No.	119569-97-0
Molecular Formula	C29H32ClIN2
Molecular Weight	571.94 g/mol
Synonyms	IR-125; 1,3,3-Trimethyl-2-[(1E,3Z)-3-chloro-5-(1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl]-3H-indol-1-ium iodide; 2-[3-Chloro-5-(1,3,3-trimethylindolin-2-ylidene)penta-1,3-dien-1-yl]-1,3,3-trimethyl-3H-indol-1-ium iodide; 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-, iodide (1:1); Cyanine dye IR-125; Heptamethine cyanine dye; NIR dye IR125; Infrared dye 125
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye is produced under strict quality management and undergoes comprehensive analytical testing to ensure identity, purity, and performance consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes data from HPLC, NMR, and UV-Vis spectroscopy. Our quality systems support compliance with ISO 9001 standards, and we can tailor purity specifications to meet the rigorous demands of research and high-tech manufacturing.

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 light-sensitive (store away from light) and easily oxidized (store under inert atmosphere); for long-term storage, consider packaging under an inert gas such as argon or nitrogen in amber glass vials. Keep away from heat 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)	≥ 95.0% (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.