Description

1,3,3-Trimethyl-2-[2-(2-Methyl-1H-Indole-3-Yl)Ethenyl]-3H-Indole-1-Ium is a specialized cationic indole derivative, a key intermediate in the synthesis of advanced functional dyes and pigments. This compound is valued for its ability to impart intense color and specific photophysical properties to materials, making it crucial for high-performance applications. It is primarily sought by manufacturers in the dye and pigment, optical data storage, and specialty chemical synthesis industries.

Application

• Cyanine Dye Synthesis: A critical precursor for producing heptamethine cyanine dyes used in biological imaging and fluorescence labeling.
• Optical Recording Media: Used in the manufacture of dyes for recordable CDs, DVDs, and Blu-ray discs.
• Non-Linear Optical Materials: Serves as a building block for materials used in photonics, laser technology, and optical switches.
• Sensitizing Dyes: Employed in the formulation of spectral sensitizers for photographic films and plates.
• Organic Photovoltaic (OPV) Research: Investigated as a component in light-absorbing layers for solar cell applications.
• Anti-Counterfeiting Inks: Used in the development of security inks with specific infrared or fluorescent properties.

Basic Information

Product Name	1,3,3-Trimethyl-2-[2-(2-Methyl-1H-Indole-3-Yl)Ethenyl]-3H-Indole-1-Ium
CAS No.	47346-66-7
Molecular Formula	C22H23N2+
Molecular Weight	315.43 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-(2-methyl-1H-indol-3-yl)ethenyl]-3H-indol-1-ium; 2-[2-(2-Methyl-1H-indol-3-yl)ethenyl]-1,3,3-trimethyl-3H-indol-1-ium; Cyanine dye intermediate IR-125 precursor; 1,3,3-Trimethyl-2-(2-(2-methylindol-3-yl)vinyl)indolium; Trimethine cyanine dye salt; Heptamethine cyanine dye precursor; 3H-Indolium, 1,3,3-trimethyl-2-[2-(2-methyl-1H-indol-3-yl)ethenyl]-
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and mass spectrometry. A Certificate of Analysis (COA) detailing purity, identity, 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). Due to its hygroscopic nature, the container must be kept sealed in a dry environment to prevent moisture absorption, which can affect stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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