Description

3,3'-Diethylthiadicarbocyanine Iodide is a near-infrared absorbing cyanine dye salt, a member of the thiadicarbocyanine family. This compound is valued for its strong light absorption and fluorescence properties in specific spectral regions, making it a critical functional material for advanced research and development. It is primarily sought after by manufacturers and researchers in the photonic materials, optical recording media, and biomedical imaging sectors for its role as a photosensitizer and chromophore.

Application

• Optical Data Storage: As a key dye component in recordable (R) and rewritable (RW) optical discs, including CD-R, DVD-R, and advanced formats.
• Photodynamic Therapy (PDT): Utilized as a photosensitizer in research for cancer treatment, where it generates reactive oxygen species upon light activation.
• Non-Linear Optical Materials: Incorporated into polymers and crystals for applications in optical limiting, switching, and frequency conversion.
• Laser Dyes & Filters: Serves as an active medium in tunable dye lasers and in the formulation of specific optical filters.
• Biomedical Imaging & Sensing: Used in the development of fluorescent probes and sensors for in vitro and in vivo diagnostic research.
• Solar Energy Research: Investigated as a potential sensitizer in dye-sensitized solar cells (DSSCs) for light harvesting.

Basic Information

Product Name	3,3'-Diethylthiadicarbocyanine Iodide
CAS No.	514-73-8
Molecular Formula	C25H25IN2S2
Molecular Weight	568.51 g/mol
Synonyms	DTDCI; 3,3'-Diethylthiatricarbocyanine Iodide; 2-[5-(1,3-Dihydro-3,3-dimethyl-1-ethyl-2H-indol-2-ylidene)-1,3-pentadienyl]-3,3-dimethyl-1-ethylindolium iodide; DTDC Iodide; NK-2614; 1-Ethyl-3,3-dimethyl-2-[5-(1-ethyl-3,3-dimethylindolin-2-ylidene)penta-1,3-dienyl]indol-3-ium iodide
EINECS	208-190-3

Quality Control

Our production of 3,3'-Diethylthiadicarbocyanine Iodide adheres to stringent 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 spectroscopy to confirm identity, purity, and spectral properties. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every 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). This material is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to blue-green crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (UV-Vis)	λmax conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
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.