Description

3,3'-Diethylthiacyanine Iodide is a synthetic organic dye belonging to the cyanine family, characterized by its distinct chromophoric structure. This compound matters as a versatile photosensitizer and fluorescent probe, offering specific light-absorption and emission properties critical for advanced research and development. It is needed by professionals in the fields of photodynamic therapy research, optical data storage, and as a key intermediate for synthesizing specialized dyes and sensors.

Application

• Photosensitizer in Photodynamic Therapy (PDT) Research: Investigated for its potential to generate reactive oxygen species upon light activation for targeted cellular applications.
• Optical Recording Media: Used in the development of advanced dyes for write-once and rewritable optical data storage disks (e.g., CD-R, DVD-R).
• Fluorescent Labeling and Probes: Serves as a building block for creating near-infrared (NIR) fluorescent tags for bioimaging and diagnostic assays.
• Laser Dye and Nonlinear Optics: Employed in the formulation of tunable dye lasers and in studies of nonlinear optical materials.
• Chemical Intermediate: A crucial precursor in the synthesis of more complex cyanine dyes and heterocyclic compounds for specialized applications.
• Sensitizer in Photography and Photolithography: Historically used in spectral sensitization of photographic emulsions and in photoresist formulations.

Basic Information

Product Name	3,3'-Diethylthiacyanine Iodide
CAS No.	2197-01-5
Molecular Formula	C23H23IN2S2
Molecular Weight	518.47 g/mol
Synonyms	3,3'-Diethylthiacyanine iodide; 2-[3-(1,3-Dihydro-3,3-dimethyl-1-ethyl-2H-indol-2-ylidene)-1-propen-1-yl]-3-ethyl-1,3-benzothiazolium iodide; Quinocyanine; Thiacarbocyanine iodide; Astrazon Orange R; Basic Orange 21; C.I. 48035; 1-Ethyl-2-[3-(1-ethyl-2(3H)-benzothiazolylidene)-1-propenyl]benzothiazolium iodide
EINECS	218-597-7

Quality Control

Our 3,3'-Diethylthiacyanine Iodide is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing key parameters such as assay, absorbance profile, and impurity levels are available upon request, supporting your research and compliance 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a desiccated environment to prevent degradation. Handle and store away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
λmax (Absorption Maxima)	Contact for details
Loss on Drying	≤ 2.0 %
Residue on Ignition (Sulfated Ash)	≤ 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.