Description

2-[2-[2-Chloro-3-[(1,3-Dihydro-3,3-Dimethyl-1-Propyl-2H-Indol-2-Ylidene)Ethylidene]-1-Cyclohexen-1-Yl]Ethenyl]-3,3-Dimethyl-1-Propylindolium Iodide is a high-purity, functional cyanine dye salt essential for advanced photonic and electronic applications. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical component in the development of next-generation optical materials. It is primarily sought by researchers and manufacturers in the fields of optical data storage, laser technology, and biomedical imaging.

Application

• Optical Data Storage Media: A key sensitizer/photosensitizer for high-density recordable (DVD-R, CD-R) and archival optical discs.
• Laser Dyes & Optical Filters: Used in the formulation of tunable dye lasers and the production of specialized optical filters for scientific and industrial equipment.
• Non-Linear Optical (NLO) Materials: A fundamental building block for creating organic materials with high second- or third-order non-linear optical susceptibility for photonics.
• Biomedical Imaging Probes: Serves as a precursor for synthesizing NIR-fluorescent labels and contrast agents for in vivo imaging and diagnostic assays.
• Organic Photovoltaic (OPV) Cells: Investigated as an active layer component or electron donor/acceptor material in solar cell research to enhance light absorption.
• Photopolymerization Initiators: Acts as a photoinitiator or co-initiator in UV-curable inks, coatings, and 3D printing resins.
• Sensor Technology: Utilized in the development of chemical sensors and biosensors due to its environment-sensitive fluorescence.
• Academic & Industrial R&D: A vital research chemical for synthetic chemistry and material science studies focused on functional dyes.

Basic Information

Item	Details
Product Name	2-[2-[2-Chloro-3-[(1,3-Dihydro-3,3-Dimethyl-1-Propyl-2H-Indol-2-Ylidene)Ethylidene]-1-Cyclohexen-1-Yl]Ethenyl]-3,3-Dimethyl-1-Propylindolium Iodide
CAS No.	528584-83-0
Molecular Formula	C36H44ClIN2
Molecular Weight	667.11 g/mol
Synonyms	Cy5.5 carboxylic acid derivative precursor; Heptamethine cyanine dye iodide salt; 2-[2-[2-Chloro-3-[(1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-3,3-dimethyl-1-propyl-1H-indolium iodide; NIR cyanine dye; 1-Propyl-2-[2-[2-chloro-3-[(1,3-dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-3,3-dimethyl-3H-indolium iodide; IR-786 related compound; Cryptocyanine family dye
EINECS	Contact for details

Quality Control

Every batch of our cyanine dyes is produced and tested under a strict ISO 9001:2015 certified quality management system. We guarantee high chemical purity and consistent batch-to-batch performance, which is critical for optical applications. Standard quality assurance includes comprehensive analysis via HPLC, NMR, and mass spectrometry. A detailed Certificate of Analysis (COA) documenting identity, purity, and key spectral properties is provided with each shipment.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light will degrade performance. For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (HPLC)	Retention time corresponds to reference standard
Identification (IR)	Spectrum matches reference
Purity (HPLC, Area %)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Absorption (λmax)	Contact for details
Emission (λmax)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.