Description

2-[3-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-1,3,3-Trimethyl-3H-Indolium Iodide is a high-purity cyanine dye salt, a key intermediate in the synthesis of advanced functional materials. Its value lies in its strong light-absorbing and fluorescent properties, making it essential for specialized photonic and electronic applications. This compound is primarily needed by manufacturers and research institutions in the optical data storage, laser technology, and non-linear optics sectors, as well as for the development of specialized biological imaging agents.

Application

• Photosensitizer and Dye Intermediate: A critical building block for synthesizing polymethine cyanine dyes used in CD-R and DVD-R recording layers.
• Non-Linear Optical (NLO) Materials: Used in research and production of materials for frequency doubling, optical switching, and laser modulation.
• Bioimaging Probes: Serves as a precursor for near-infrared (NIR) fluorescent dyes used in biological and medical imaging applications.
• Laser Dye Formulations: A component in the development of tunable dye lasers for scientific and industrial use.
• Optical Filter Manufacturing: Employed in the creation of specialized optical filters and coatings that require specific absorption characteristics.
• Photovoltaic Research: Investigated for use in organic solar cells and other light-harvesting devices due to its photophysical properties.

Basic Information

Product Name	2-[3-(1,3-Dihydro-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-1,3,3-Trimethyl-3H-Indolium Iodide
CAS No.	25470-94-4
Molecular Formula	C25H29IN2
Molecular Weight	484.42 g/mol
Synonyms	1,3,3-Trimethyl-2-[3-(1,3,3-trimethylindolin-2-ylidene)propenyl]indolium iodide; DTTC Iodide; 3,3'-Diethylthiadicarbocyanine Iodide (common name for related structure); Dye Intermediate 25470-94-4; Cyanine Dye Salt; 2-[3-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propenyl]-1,3,3-trimethyl-3H-indolium iodide; Astrazon Orange R (related class); Cryptocyanine derivative
EINECS	Contact for details

Quality Control

Our production of this cyanine dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity for sensitive applications. Quality is verified through comprehensive analytical techniques including HPLC, NMR, and UV-Vis spectroscopy. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support customer audits and can tailor specifications to meet specific research or cGMP requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent degradation. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to bronze crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
UV-Vis Absorption (λmax)	Specified range provided on COA
Heavy Metals (as Pb)	≤ 20 ppm

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