Description

3,3'-Dipropylthiadicarbocyanine Iodide is a near-infrared absorbing cyanine dye salt, a member of the thiadicarbocyanine family. This compound is valued for its strong fluorescence and photostability, making it a critical functional material for advanced research and development. It is primarily sought by manufacturers and researchers in the photovoltaic, optical data storage, and biomedical imaging sectors for its light-harvesting and labeling properties.

Application

• Optical Data Storage Media: As a key dye component in recordable (R) and rewritable (RW) optical discs (e.g., CD-R, DVD-R).
• Photovoltaic & Dye-Sensitized Solar Cells (DSSC): As a photosensitizer to absorb specific wavelengths of light and convert them into electrical energy.
• Fluorescent Labeling & Probes: For labeling biomolecules (proteins, nucleic acids) in fluorescence microscopy and bioanalytical assays.
• Laser Dyes & Nonlinear Optics: As an active medium in tunable dye lasers and for studies in nonlinear optical phenomena.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer agent for targeted cancer treatments.
• Chemical Sensors: Utilized in the development of fluorescence-based sensors for detecting ions or small molecules.

Basic Information

Product Name	3,3'-Dipropylthiadicarbocyanine Iodide
CAS No.	53213-94-8
Molecular Formula	C25H31IN2S2
Molecular Weight	574.55 g/mol
Synonyms	DTDCI; 3,3'-Dipropylthiatricarbocyanine Iodide; 1,1',3,3,3',3'-Hexamethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine Iodide; 2-[7-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-3H-indolium Iodide; NK-2614; Cryptocyanine; Cryptocyanine dye; NIR Cyanine Dye
EINECS	Contact for details

Quality Control

Our production of 3,3'-Dipropylthiadicarbocyanine Iodide adheres to stringent quality management protocols. Each batch is characterized and tested to ensure consistent purity, spectral properties, and performance. Comprehensive Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided 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). Due to its hygroscopic nature, the container should be kept in a desiccated environment to prevent moisture absorption, which can affect performance.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Absorption Max (λmax)	750 - 760 nm (in methanol)
Moisture Content (KF)	≤ 2.0 %
Residue on Ignition	≤ 0.5 %

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