Description

3H-Indolium, 2-[2-[4-(Dimethylamino) Phenyl] Ethenyl]-1,3,3-Trimethyl-, Sulfate is a specialized cationic dye belonging to the cyanine dye family, recognized for its distinct photophysical properties. This compound is highly valued for its strong absorption and fluorescence characteristics in the visible to near-infrared spectrum. It is primarily sought by manufacturers and researchers in the photographic, optical data storage, and biomedical imaging sectors for use as a sensitizer and fluorescent probe.

Application

• Optical Data Storage Media: Acts as a key photosensitizing dye in the recording layer of CD-R, DVD-R, and other recordable optical discs.
• Photographic Sensitizers: Used in silver halide photographic films and papers to extend spectral sensitivity.
• Laser Dyes & Nonlinear Optics: Employed in the formulation of tunable dye lasers and materials for nonlinear optical applications due to its emission properties.
• Biomedical Imaging & Staining: Serves as a fluorescent label or stain in biological research for cell imaging and diagnostic assays.
• Solar Energy & Photovoltaics: Investigated for use in dye-sensitized solar cells (DSSCs) as a light-harvesting component.
• Security Inks & Anti-Counterfeiting: Utilized in high-security printing for banknotes and documents due to its specific optical signature.

Basic Information

Product Name	3H-Indolium, 2-[2-[4-(Dimethylamino) Phenyl] Ethenyl]-1,3,3-Trimethyl-, Sulfate
CAS No.	84455-53-8
Molecular Formula	C23H28N2O4S
Molecular Weight	428.54 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-(4-dimethylaminophenyl)ethenyl]-3H-indolium Sulfate; Cryptocyanine; Dye Content 95%; 1,3,3-Trimethyl-2-[(E)-2-(4-dimethylaminophenyl)ethenyl]-3H-indolium Sulfate; Cryptocyanine Dye; 1,1',3,3,3',3'-Hexamethylindocarbocyanine Sulfate; HITC Sulfate; 4-[2-(1,3,3-Trimethylindolin-2-ylidene)ethylidene]-N,N-dimethylcyclohexa-2,5-dien-1-iminium Sulfate
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical methods including HPLC, UV-Vis spectroscopy, and elemental analysis. A Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
λmax (Absorption Maximum)	750 - 770 nm (in methanol)
Heavy Metals (as Pb)	≤ 20 ppm

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