Description

3,3'-Diheptylthiacarbocyanine Iodide is a near-infrared cyanine dye salt, a member of the carbocyanine family characterized by its heptyl side chains and sulfur-containing heterocyclic structure. This compound is valued for its strong light absorption and fluorescence properties in the near-infrared (NIR) region, making it a critical functional material for advanced optical applications. It is primarily sought by researchers and manufacturers in the fields of biomedical imaging, optical data storage, and as a sensitizer in dye-sensitized solar cells (DSSCs).

Application

• Fluorescent Labeling and Probes: Used in the development of NIR fluorescent probes for deep-tissue biological imaging and diagnostic assays.
• Optical Data Storage: Acts as a recording medium in advanced optical discs and holographic data storage systems due to its photochromic properties.
• Dye-Sensitized Solar Cells (DSSCs): Functions as a photosensitizer to absorb a broad spectrum of light and enhance photovoltaic conversion efficiency.
• Laser Dyes and Nonlinear Optics: Employed in the tuning of dye lasers and in the study of nonlinear optical phenomena.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizing agent for targeted cancer treatments.
• Chemical Sensors: Incorporated into sensor designs for the detection of specific ions or molecules based on fluorescence quenching or enhancement.

Basic Information

Product Name	3,3'-Diheptylthiacarbocyanine Iodide
CAS No.	53213-88-0
Molecular Formula	C35H49IN2S2
Molecular Weight	712.80 g/mol
Synonyms	DTTC Iodide; 1,1',3,3,3',3'-Hexamethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine Iodide; Diethylthiatricarbocyanine Iodide (common misnomer); Thiacarbocyanine dye, NIR; HITC Iodide (Heptyl variant); 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-2014 (research code); Near-infrared cyanine dye.
EINECS	Contact for details

Quality Control

Every batch of 3,3'-Diheptylthiacarbocyanine Iodide is subjected to rigorous analytical testing to ensure high purity and consistent performance for research and industrial applications. Our quality assurance protocol includes spectroscopic analysis and chromatographic methods to verify identity and quantify impurities. Certificates of Analysis (COA) detailing purity, absorbance/fluorescence maxima, and other critical parameters are available upon request to support your quality documentation 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 light-sensitive (store away from light) and should be handled under appropriate conditions to prevent photodegradation. Keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Absorption Max (λmax)	760 - 780 nm (in methanol)
Emission Max (λem)	790 - 810 nm (in methanol)
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 1.0 %

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