Description

3-ethyl-2-[[3-[3-[3-[(3-ethyl-3H-benzothiazol-2-ylidene)methyl]-5,5-dimethylcyclohex-2-en-1-ylidene]prop-1-enyl]-5,5-dimethylcyclohex-2-en-1-ylidene]methyl]benzothiazolium perchlorate is a high-purity, functional cyanine dye salt, recognized for its exceptional photophysical properties. This compound matters as a critical photosensitizer and near-infrared (NIR) absorbing chromophore, enabling advanced applications in optical and electronic materials. It is primarily needed by manufacturers and research institutions in the photonics, semiconductor, and biomedical imaging sectors for developing cutting-edge technologies.

Application

• Optical Data Storage: As a key NIR-absorbing dye for recordable CD-R and DVD-R media.
• Laser Technology: As a gain medium or saturable absorber in tunable dye lasers and for mode-locking in solid-state lasers.
• Photodynamic Therapy (PDT): As a photosensitizer for targeted cancer treatment and antimicrobial applications.
• Nonlinear Optics (NLO): In the fabrication of optical limiters, switches, and frequency conversion devices due to its high polarizability.
• Bioimaging & Sensing: As a fluorescent probe or contrast agent for in vivo and in vitro imaging in the NIR window.
• Organic Photovoltaics (OPV): As an electron donor or acceptor material in the active layer of solar cells.
• Chemical Sensing: Incorporated into films and polymers for the detection of specific ions or gases.
• Academic & Industrial R&D: For fundamental research in photochemistry and material science.

Basic Information

Item	Detail
Product Name	3-ethyl-2-[[3-[3-[3-[(3-ethyl-3H-benzothiazol-2-ylidene)methyl]-5,5-dimethylcyclohex-2-en-1-ylidene]prop-1-enyl]-5,5-dimethylcyclohex-2-en-1-ylidene]methyl]benzothiazolium perchlorate
CAS No.	65767-27-3
Molecular Formula	C39H43N2O4S2Cl
Molecular Weight	711.33 g/mol
Synonyms	IR-26; Cryptocyanine; 1,1'-Diethyl-4,4'-carbocyanine Perchlorate; 3H-Indolium, 2-[2-[3-[(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2-(phenylthio)-1-cyclohexen-1-yl]ethenyl]-1,3,3-trimethyl-, perchlorate; DTTC Perchlorate; NIR Dye IR-26; Heptamethine cyanine dye perchlorate salt; 1,1'-Diethyl-2,2'-dicarbocyanine perchlorate
EINECS	Contact for details

Quality Control

Our production of this 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 to confirm identity, purity, and optical properties. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every 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). Due to its perchlorate salt nature and light-sensitive properties, it should be kept separate from reducing agents and combustible materials. The container should be kept tightly sealed in a desiccator to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (UV-Vis)	λmax conforms (typically ~800-850 nm in solvent)
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility Test	Freely soluble in dichloromethane, DMSO; soluble in ethanol

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