Description

2-[2-[4-(Diethylammonio)Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Oxalate is an indolenine-based cyanine dye salt, a high-purity specialty chemical with significant photophysical properties. This compound matters for its role as a key intermediate and functional dye in advanced material science and analytical applications. It is primarily needed by manufacturers and R&D facilities in the photographic, optical data storage, laser dye, and non-linear optical material industries.

Application

• Laser Dye Intermediate: Used in the synthesis of near-infrared (NIR) absorbing cyanine dyes for tunable dye lasers.
• Optical Data Storage: Acts as a key component in the formulation of recording layers for CD-R, DVD-R, and other optical media.
• Photographic Sensitizers: Employed as spectral sensitizers in silver halide photographic emulsions to extend sensitivity into specific wavelength ranges.
• Non-Linear Optical (NLO) Materials: Serves as a chromophore for developing organic materials with second- or third-order optical non-linearity for photonic devices.
• Biomedical Imaging Probes: Utilized as a precursor for synthesizing fluorescent labels and probes for bioanalytical and diagnostic applications.
• Organic Photovoltaic (OPV) Research: Investigated as an electron donor or acceptor material in the active layer of solar cell research due to its absorption characteristics.

Basic Information

Product Name	2-[2-[4-(Diethylammonio)Phenyl]Vinyl]-1,3,3-Trimethyl-3H-Indolium Oxalate
CAS No.	83969-11-3
Molecular Formula	C24H28N2O4
Molecular Weight	408.49 g/mol
Synonyms	1,3,3-Trimethyl-2-[2-[4-(diethylamino)phenyl]ethenyl]-3H-indolium oxalate; Dye intermediate 83969-11-3; Cyanine dye oxalate salt; Oxalate salt of a heptamethine cyanine dye precursor; 2-[2-[4-(Diethylamino)styryl]-1,3,3-trimethyl-3H-indolium oxalate; [2-[4-(Diethylamino)styryl]-1,3,3-trimethylindolium oxalate; Photographic sensitizing dye
EINECS	Contact for details

Quality Control

Our production of this specialty dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity for sensitive applications. Quality is verified through advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

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 (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to blue-black 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%
UV-Vis Absorption (λmax)	Conforms (Typically 550-650 nm in suitable solvent)

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