Description

2-[3-(1,3-Dihydro-5-Methoxy-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-5-Methoxy-1,3,3-Trimethyl-3H-Indolium Chloride is a high-purity cyanine dye salt, a critical functional material valued for its strong near-infrared absorption and fluorescence properties. This compound is essential for advanced research and manufacturing processes that require precise photophysical characteristics. It is primarily sought by the optical data storage, biomedical imaging, and photodynamic therapy sectors, where material consistency and performance are paramount.

Application

• Optical Data Storage Media: A key component in the formulation of recordable CD-R and DVD-R dyes.
• Biomedical Imaging Probes: Used as a near-infrared (NIR) fluorescent label or tag for in vivo and in vitro imaging applications.
• Photodynamic Therapy (PDT): Serves as a potential photosensitizer for targeted cancer treatments.
• Laser Technology: Employed as a gain medium or saturable absorber in tunable dye lasers.
• Non-linear Optics (NLO): Utilized in research and development of materials for optical limiting and switching.
• Analytical Chemistry: Functions as a sensitive staining agent for the detection of biomolecules.
• Security Inks & Dyes: Incorporated into inks for anti-counterfeiting and authentication purposes due to its specific spectral signature.

Basic Information

Item	Details
Product Name	2-[3-(1,3-Dihydro-5-Methoxy-1,3,3-Trimethyl-2H-Indol-2-Ylidene)Prop-1-Enyl]-5-Methoxy-1,3,3-Trimethyl-3H-Indolium Chloride
CAS No.	6359-31-5
Molecular Formula	C27H33ClN2O2
Molecular Weight	453.02 g/mol
Synonyms	DTTC Iodide (common misnomer for chloride salt); 1,1',3,3,3',3'-Hexamethyl-4,4',5,5'-dibenzo-2,2'-indotricarbocyanine Chloride; 3H-Indolium, 2-[3-(1,3-dihydro-5-methoxy-1,3,3-trimethyl-2H-indol-2-ylidene)-1-propenyl]-5-methoxy-1,3,3-trimethyl-, chloride; DTTC Chloride; NIR Dye; IR-125 (related analog); Cryptocyanine derivative; Heptamethine cyanine dye chloride salt
EINECS	Contact for details

Quality Control

Our production of this cyanine dye adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Every lot is characterized using advanced analytical techniques including HPLC, NMR, and UV-Vis-NIR spectroscopy to confirm identity, purity, and critical photophysical properties. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and absorbance/fluorescence data is provided with each shipment.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term stability, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (UV-Vis)	λmax conforms
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Absorbance (λmax)	760 - 790 nm (in methanol)
Extinction Coefficient (ε)	≥ 200,000 L·mol⁻¹·cm⁻¹

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