Description

2-[2-[4-[(2-Chloroethyl)Ethylamino]-o-Tolyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Dihydrogen Phosphate is a high-purity, functional organic salt belonging to the indolium dye family. This compound matters for its role as a key intermediate and functional chromophore in advanced material science and specialty chemical synthesis. It is primarily needed by manufacturers and R&D facilities in the photographic, laser dye, and optical material industries for developing light-sensitive systems and non-linear optical (NLO) applications.

Application

• Photographic Sensitizer: Used as a spectral sensitizer in silver halide photographic emulsions to extend light sensitivity into specific wavelength ranges.
• Laser Dye Intermediate: Serves as a precursor for synthesizing cyanine and polymethine dyes used in tunable dye lasers and laser marking systems.
• Optical Data Storage: A functional component in the research and development of materials for optical discs and holographic data storage media.
• Non-Linear Optical (NLO) Materials: Investigated for use in the synthesis of organic crystals and polymers with second- or third-order non-linear optical properties for photonics.
• Biomedical Staining: Potential application as a fluorescent probe or staining agent in biological imaging and diagnostic assays due to its chromophoric structure.
• Chemical Synthesis: Acts as a versatile building block for the synthesis of more complex heterocyclic compounds and specialty dyes.

Basic Information

Product Name	2-[2-[4-[(2-Chloroethyl)Ethylamino]-o-Tolyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Dihydrogen Phosphate
CAS No.	83949-67-1
Molecular Formula	C24H31ClN2O4P
Molecular Weight	477.94 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-[4-[(2-chloroethyl)ethylamino]-2-methylphenyl]ethenyl]-3H-indolium dihydrogen phosphate; 2-[2-[4-[(2-Chloroethyl)ethylamino]-2-methylphenyl]vinyl]-1,3,3-trimethylindolium dihydrogen phosphate; Indolium, 2-[2-[4-[(2-chloroethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-, phosphate (1:1); Cyanine dye derivative; Photographic sensitizing dye; NK 529 phosphate salt; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 2-[2-[4-[(2-Chloroethyl)Ethylamino]-o-Tolyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Dihydrogen Phosphate adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high chemical purity. Each lot is characterized and tested using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-green crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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