Description

2-[2-[4-[(2-Chloroethyl)Methylamino]Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Hydrogen Sulphate is a specialized cationic dye intermediate and a key precursor for synthesizing cyanine dyes. This compound matters for its role in producing advanced functional dyes with specific photophysical properties, including near-infrared absorption and fluorescence. It is primarily needed by manufacturers in the photographic, optical data storage, and biomedical imaging sectors for applications such as laser media, sensitizers, and fluorescent probes.

Application

• Cyanine Dye Synthesis: A critical building block for manufacturing heptamethine and other polymethine cyanine dyes.
• Optical Recording Media: Used in the production of dyes for CD-R, DVD-R, and other optical data storage technologies.
• Laser Applications: Serves as a precursor for dyes used in tunable dye lasers and laser printer toners.
• Biomedical Imaging: Intermediate for synthesizing near-infrared fluorescent probes and labels used in bioassays and diagnostic imaging.
• Photographic Sensitizers: Employed in the formulation of spectral sensitizers for silver halide photographic emulsions.
• Non-linear Optical Materials: A key component in the development of materials for photonics and optoelectronics.

Basic Information

Product Name	2-[2-[4-[(2-Chloroethyl)Methylamino]Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Hydrogen Sulphate
CAS No.	83969-10-2
Molecular Formula	C22H27ClN2O4S
Molecular Weight	450.98 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-[4-[(2-chloroethyl)methylamino]phenyl]ethenyl]-3H-indolium hydrogen sulfate; 2-[2-[4-[(2-Chloroethyl)methylamino]phenyl]vinyl]-1,3,3-trimethylindolinium hydrogen sulfate; Cyanine dye precursor 83969-10-2; Indolium, 2-[2-[4-[(2-chloroethyl)methylamino]phenyl]ethenyl]-1,3,3-trimethyl-, hydrogen sulfate (1:1); Heptamethine cyanine dye intermediate; NIR dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict in-process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and mass spectrometry. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting purity, identity, and impurity profiles to meet the exacting standards of fine chemical and pharmaceutical intermediate manufacturers.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-green crystalline powder
Identification (HPLC)	Conforms to reference standard
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.