Description

3,3'-Diethylthiacarbocyanine Iodide is a high-purity cyanine dye salt, a member of the carbocyanine family. This compound is valued for its strong absorption and fluorescence properties in the visible to near-infrared spectrum, making it a critical functional material. It is primarily needed by researchers and manufacturers in the fields of biomedical imaging, photodynamic therapy, and advanced material science.

Application

• Fluorescent Labeling and Staining: Used as a sensitive probe for labeling biomolecules (e.g., proteins, nucleic acids) in fluorescence microscopy and flow cytometry.
• Photodynamic Therapy (PDT) Research: Acts as a potential photosensitizer in the development of treatments for cancer and bacterial infections.
• Optical Data Storage: Serves as a functional dye layer in the research and development of high-density optical recording media.
• Nonlinear Optical Materials: Investigated for use in the fabrication of materials for photonic devices, optical limiters, and switches due to its large nonlinear optical coefficients.
• Laser Dye Applications: Can be utilized as a gain medium in tunable dye lasers operating in specific spectral regions.
• Sensor Development: Employed in the design of chemical and biological sensors that rely on fluorescence signal changes.

Basic Information

Product Name	3,3'-Diethylthiacarbocyanine Iodide
CAS No.	905-97-5
Molecular Formula	C23H23IN2S2
Molecular Weight	518.47 g/mol
Synonyms	DTCC Iodide; 3,3'-Diethylthiadicarbocyanine Iodide; 2-[5-(1,3-Dihydro-3,3-dimethyl-1-ethyl-2H-indol-2-ylidene)-1,3-pentadienyl]-3,3-dimethyl-1-ethylindolium Iodide; Thiacarbocyanine Dye; Cyanine Dye 3; Astrazon Orange R; Basic Orange 21; 1-Ethyl-2-[5-(1-ethyl-3,3-dimethylindolin-2-ylidene)penta-1,3-dienyl]-3,3-dimethyl-3H-indolium Iodide
EINECS	Contact for details

Quality Control

Our 3,3'-Diethylthiacarbocyanine Iodide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for absorbance/fluorescence verification, and identity confirmation (IR, NMR). We provide Certificates of Analysis (COA) with every shipment to ensure traceability and compliance with your research or production 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). This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Absorption (λmax in Methanol)	554 - 562 nm
Extinction Coefficient (ε)	≥ 1.5 x 105 L·mol-1·cm-1
Loss on Drying	≤ 2.0 %
Residue on Ignition (Sulfated Ash)	≤ 1.0 %

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