Description

3,3'-Diethyl-9,11-Neopentylenethiatetracarbocyanine Iodide is a specialized cyanine dye salt belonging to the carbocyanine class, characterized by its near-infrared (NIR) absorption and emission properties. This compound matters for its role as a key functional material in advanced photonic and electronic applications, where its specific spectral characteristics are critical. It is primarily needed by researchers and manufacturers in the fields of optical data storage, laser technology, and as a sensitizer or dopant in the development of organic semiconductors and non-linear optical materials.

Application

• Optical Data Storage Media: Used as a light-absorbing layer in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD-R).
• Laser Dyes & Optical Filters: Serves as an active medium in tunable dye lasers and as a component in NIR optical filters due to its sharp absorption bands.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for cancer treatment, leveraging its ability to generate reactive oxygen species upon light irradiation.
• Non-Linear Optics (NLO): Employed in the fabrication of materials for frequency doubling, optical switching, and modulation devices.
• Organic Semiconductor Fabrication: Acts as a functional dopant to modify the electrical or optical properties of organic thin-film transistors (OTFTs) and OLEDs.
• Biomedical Imaging Probes: Utilized in the synthesis of NIR fluorescent labels and probes for in vitro and in vivo imaging applications.
• Spectral Sensitization: Applied in photographic and electrophotographic systems to extend the spectral sensitivity of silver halide or other photoconductive materials.

Basic Information

Product Name	3,3'-Diethyl-9,11-Neopentylenethiatetracarbocyanine Iodide
CAS No.	36528-80-0
Molecular Formula	C31H35IN2S2
Molecular Weight	642.65 g/mol
Synonyms	DTTC Iodide; 3,3'-Diethylthiatricarbocyanine Iodide (common name); 2-[7-(1,3-Dihydro-3,3-dimethyl-1-propyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-3,3-dimethyl-1-propylindolium iodide; NK-3194; Thiatricarbocyanine dye; NIR Cyanine Dye; 1,1',3,3,3',3'-Hexamethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine iodide (related structural name); 9,11-Neopentylenethiatetracarbocyanine iodide
EINECS	Contact for details

Quality Control

Our 3,3'-Diethyl-9,11-Neopentylenethiatetracarbocyanine Iodide is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity, UV-Vis/NIR spectroscopy for spectral verification, and elemental analysis to confirm composition. Certificates of Analysis (COA) detailing batch-specific results are available upon request, ensuring traceability and compliance with your research or manufacturing specifications.

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 hygroscopic (moisture-sensitive) nature, the container should be kept in a desiccated environment. For long-term storage, consider sealing under an inert atmosphere such as argon or nitrogen to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (UV-Vis)	Conforms to reference spectrum (λmax in NIR region)
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility Test	Freely soluble in dichloromethane, DMSO; soluble in methanol

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