Description

1,1',3,3,3',3'-Hexamethylindotricarbocyanine Tetrafluoroborate is a near-infrared (NIR) absorbing cyanine dye salt, recognized for its high molar absorptivity and photostability. This compound is a critical functional material valued for its ability to act as a photosensitizer and a fluorescent probe in advanced optical applications. It is primarily needed by researchers and manufacturers in the fields of photodynamic therapy, optical data storage, non-linear optics, and as a key component in the formulation of specialized inks and coatings.

Application

• Photodynamic Therapy (PDT) Research: Utilized as a photosensitizer for the development of new cancer treatments and antimicrobial therapies due to its strong absorption in the biological tissue transparency window.
• Optical Data Storage: Serves as a recording medium in high-density optical disks and holographic storage systems because of its excellent photochromic properties.
• Non-Linear Optical (NLO) Materials: Incorporated into polymers and crystals for applications in optical limiting, switching, and frequency conversion.
• Laser Dye and Filter Applications: Used in the tuning of dye lasers and in the manufacture of optical filters that operate in the near-infrared spectrum.
• Security Inks and Taggants: Acts as a covert marker in high-security printing, brand protection, and anti-counterfeiting technologies.
• Bioimaging and Sensing: Employed in the synthesis of NIR fluorescent labels and probes for deep-tissue imaging and diagnostic assays.

Basic Information

Product Name	1,1',3,3,3',3'-Hexamethylindotricarbocyanine Tetrafluoroborate
CAS No.	61575-73-3
Molecular Formula	C37H41BF4N2
Molecular Weight	624.55 g/mol
Synonyms	HITC Tetrafluoroborate; 1,1',3,3,3',3'-Hexamethylindotricarbocyanine Boron Tetrafluoride; IR-140; 4-[2-[2-Chloro-3-[(1,3-dihydro-1,1,3-trimethyl-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-1,1,3-trimethyl-2H-benz[e]indolium Tetrafluoroborate; HITC-BF4; NIR Cyanine Dye BF4 Salt; Tricarbocyanine Dye
EINECS	Contact for details

Quality Control

Our 1,1',3,3,3',3'-Hexamethylindotricarbocyanine Tetrafluoroborate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance characteristics, and impurity profiles is provided with every shipment.

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) and light-sensitive; therefore, containers must be kept sealed under an inert atmosphere (e.g., argon or nitrogen) when not in use to prevent degradation and moisture absorption.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
λmax (Absorption)	760 - 780 nm (in methanol)
Extinction Coefficient (ε)	≥ 1.8 x 105 L·mol-1·cm-1
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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