Description

1,1',3,3,3',3'-Hexamethylindodicarbocyanine is a near-infrared (NIR) absorbing cyanine dye belonging to the indodicarbocyanine family. Its core value lies in its strong absorption and fluorescence properties in the NIR region, making it an essential functional material for advanced photonic and biomedical applications. This compound is primarily needed by researchers and manufacturers in the fields of optical materials, laser technology, and as a fluorescent probe or sensitizer in life sciences and diagnostic development.

Application

• Optical Limiting and Nonlinear Optical Materials: Used in the fabrication of devices for laser protection and optical signal processing due to its high nonlinear absorption.
• Laser Dye and Photonic Applications: Serves as a gain medium or saturable absorber in tunable dye lasers and other photonic components operating in the near-infrared spectrum.
• Fluorescent Labeling and Probes: Employed in the development of NIR fluorescent probes for bioimaging, offering deeper tissue penetration and reduced background autofluorescence.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for cancer treatment, utilizing its ability to generate reactive oxygen species upon light activation.
• Organic Photovoltaic and Solar Cell Research: Functions as a light-harvesting material in the active layer of experimental solar cells and photodetectors.
• Chemical Sensing: Incorporated into sensor systems for the detection of specific ions or molecules based on fluorescence quenching or enhancement.

Basic Information

Item	Detail
Product Name	1,1',3,3,3',3'-Hexamethylindodicarbocyanine
CAS No.	48221-03-0
Molecular Formula	C29H31N2+
Molecular Weight	407.57 g/mol (cation)
Synonyms	HIDC; Hexamethylindodicarbocyanine Iodide; 1,1',3,3,3',3'-Hexamethylindotricarbocyanine Iodide (common misnomer); IR-125; NK-1254; 2-[7-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-3H-indolium Iodide; 4,4'-Carbocyanine Dye; Cryptocyanine
EINECS	Contact for details

Quality Control

Our 1,1',3,3,3',3'-Hexamethylindodicarbocyanine is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity assessment and spectroscopic methods (UV-Vis, NMR) for identity confirmation, to ensure compliance with high-purity research-grade standards. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance maxima, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as indicated on the label or COA. This material is hygroscopic (moisture-sensitive) and strictly light-sensitive; therefore, containers must be kept sealed under inert atmosphere (e.g., argon or nitrogen) when possible and handled in low-light conditions to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (UV-Vis)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Absorption Maximum (λmax)	~750 - 770 nm (in methanol)
Extinction Coefficient (ε)	≥ 200,000 L·mol⁻¹·cm⁻¹
Water 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.