Description

2-[2-(2,3-Dihydro-5-Methoxy-2,3,3-Trimethyl-1H-Indol-1-Yl)Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride is a specialized cationic indole dye intermediate with significant commercial value in advanced material synthesis. This compound is prized for its role as a key precursor in the production of functional dyes, particularly cyanine dyes, which are essential for high-performance optical applications. It is primarily sought by manufacturers in the photographic, optical data storage, laser dye, and biomedical imaging sectors who require precise molecular structures for consistent product performance.

Application

• Cyanine Dye Synthesis: A critical building block for manufacturing heptamethine and other polymethine cyanine dyes.
• Optical Data Storage Media: Used in the formulation of recording layers for CDs, DVDs, and Blu-ray discs.
• Laser Dyes & Optical Filters: Serves as a precursor for dyes used in tunable dye lasers and specialized optical filters.
• Biomedical Imaging Probes: Utilized in the synthesis of near-infrared (NIR) fluorescent labels and contrast agents for in vivo imaging.
• Photographic Sensitizers: Employed in the silver halide photographic industry to enhance spectral sensitivity.
• Non-Linear Optical (NLO) Materials: A key intermediate for developing organic materials with NLO properties for photonics.
• Textile Dyeing: Used in the production of specialized, high-fastness dyes for synthetic fibers.

Basic Information

Item	Details
Product Name	2-[2-(2,3-Dihydro-5-Methoxy-2,3,3-Trimethyl-1H-Indol-1-Yl)Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride
CAS No.	38926-38-4
Molecular Formula	C25H31ClN2O
Molecular Weight	410.98 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-(5-methoxy-2,3,3-trimethyl-3H-indol-1-ium-1-yl)vinyl]-3H-indolium chloride; 2-[2-(5-Methoxy-2,3,3-trimethyl-3H-indol-1-ium-1-yl)vinyl]-1,3,3-trimethyl-3H-indolium chloride; 1,1',3,3,3',3'-Hexamethyl-5-methoxyindocarbocyanine chloride; 5-Methoxy-1,1',3,3,3',3'-hexamethylindocarbocyanine chloride; Cy3.5-like dye intermediate; Cyanine dye intermediate 38926-38-4; 5-Methoxy ICG derivative intermediate
EINECS	Contact for details

Quality Control

Our production of 2-[2-(2,3-Dihydro-5-Methoxy-2,3,3-Trimethyl-1H-Indol-1-Yl)Vinyl]-1,3,3-Trimethyl-3H-Indolium Chloride adheres to a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and Karl Fischer titration for moisture content, to ensure it meets precise customer specifications. Certificates of Analysis (COA) detailing all test results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed and away from direct light sources to maintain stability and prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-green crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF Titration)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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