Description

2-[(E)-2-(2-Chloro-3-((E)-2-[3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene]Ethylidene)-1-Cyclohexen-1-Yl)Ethenyl]-3-Ethyl-1,3-Benzothiazol-3-Ium Iodide is a high-purity, functional cyanine dye salt, recognized for its exceptional photostability and strong near-infrared absorption properties. This compound is a critical intermediate and active component in advanced optical and electronic applications, where precise molecular performance is non-negotiable. It is primarily sought by manufacturers and research institutions in the photonics, semiconductor, and specialty chemical synthesis sectors.

Application

• Optical Data Storage: As a key dye component in recordable CD-R and DVD-R media formulations.
• Laser Technology: Serving as a saturable absorber or gain medium in tunable dye lasers and optical switches.
• Nonlinear Optics (NLO): Used in the research and development of materials for frequency doubling and optical limiting devices.
• Bioimaging & Sensors: Acting as a fluorescent probe or label in near-infrared (NIR) fluorescence imaging and biochemical sensing applications.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in medical research for targeted light-activated treatments.
• Organic Photovoltaics (OPV): Utilized in the development of light-absorbing layers for next-generation solar cells.
• Analytical Chemistry: Employed as a staining agent or chromophore in spectroscopic analysis and detection methods.

Basic Information

Product Name	2-[(E)-2-(2-Chloro-3-((E)-2-[3-Ethyl-1,3-Benzothiazol-2(3H)-Ylidene]Ethylidene)-1-Cyclohexen-1-Yl)Ethenyl]-3-Ethyl-1,3-Benzothiazol-3-Ium Iodide
CAS No.	65303-15-3
Molecular Formula	C29H28ClIN2S2
Molecular Weight	631.02 g/mol
Synonyms	DTTC Iodide; 3,3'-Diethylthiadicarbocyanine Iodide; 1,3,3-Trimethyl-2-[5-(1,3,3-trimethyl-1,3-dihydro-2H-indol-2-ylidene)-1,3-pentadienyl]-3H-indolium Iodide (related structure); DTDC Iodide; NK-2014; Near-IR Cyanine Dye; Thiacarbocyanine Dye Salt; 2-[2-[2-Chloro-3-[(1,3-dihydro-3-ethyl-2H-benzothiazol-2-ylidene)ethylidene]-1-cyclohexen-1-yl]ethenyl]-3-ethylbenzothiazolium Iodide
EINECS	Contact for details

Quality Control

Every batch of our cyanine dye is produced and analyzed under strict quality management protocols to ensure consistency and purity for sensitive optical applications. We employ advanced analytical techniques including HPLC, NMR, and mass spectrometry for identity confirmation and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance characteristics, and other critical parameters is provided with each shipment to support your quality assurance and regulatory needs.

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 product is light-sensitive and should be handled under appropriate conditions to prevent degradation. Keep the container sealed in a desiccated environment to minimize moisture exposure.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0% (Area Percent)
Water Content (KF)	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Absorption Max (λmax)	750 - 770 nm (in methanol)
Extinction Coefficient (ε)	≥ 200,000 L·mol⁻¹·cm⁻¹

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