Description

1 1'-Diethyl-2 2'-Quinotricarbocyanine is a specialized near-infrared (NIR) absorbing cyanine dye with a high degree of conjugation. This compound is valued for its strong and tunable photophysical properties, making it a critical functional material in advanced research and development. It is primarily sought by manufacturers and researchers in the photonics, optical data storage, and biomedical imaging sectors for applications requiring precise light absorption and emission in the NIR spectrum.

Application

• Optical Data Storage Media: As a key light-absorbing component in recordable (R) and rewritable (RW) optical discs, including advanced formats.
• Laser and Photonics: Used in the formulation of NIR laser dyes, optical filters, and non-linear optical materials for laser systems.
• Biomedical Imaging Probes: Serves as a potential fluorescent tag or contrast agent for deep-tissue imaging and diagnostic assays due to its NIR fluorescence.
• Organic Photovoltaics (OPV): Investigated as an electron donor or acceptor material in the active layer of solar cells for light harvesting.
• Sensor Technology: Employed in the development of chemical sensors and biosensors where optical signal transduction is required.
• Security Inks and Dyes: Utilized in anti-counterfeiting inks for currency, documents, and high-value products due to its specific spectral signature.

Basic Information

Product Name	1 1'-Diethyl-2 2'-Quinotricarbocyanine
CAS No.	17695-32-8
Molecular Formula	C31H31N2+
Molecular Weight	431.59 g/mol
Synonyms	1,1'-Diethyl-2,2'-quinotricarbocyanine iodide; Quinotricarbocyanine dye; DTTC Iodide; 1,1'-Diethyl-2,2'-quinotricarbocyanine iodide; 3H-Indolium, 2-[2-[2-[2-(1,3-dihydro-1,1-dimethyl-3-(4-sulfobutyl)-2H-benz[e]indol-2-ylidene)ethylidene]-1-cyclopenten-1-yl]ethenyl]-1,1-dimethyl-3-(4-sulfobutyl)-, inner salt; NIR Cyanine Dye
EINECS	Contact for details

Quality Control

Our 1 1'-Diethyl-2 2'-Quinotricarbocyanine is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, UV-Vis-NIR spectroscopy for absorbance profile verification, and identity confirmation via mass spectrometry. A Certificate of Analysis (COA) detailing batch-specific results is provided to ensure traceability and compliance with your research or manufacturing specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (UV-Vis)	Conforms to reference spectrum
Identification (MS)	Conforms
Purity (HPLC)	≥ 95.0% (Area %)
Absorption λmax	760 - 780 nm (in methanol)
Moisture Content (KF)	≤ 2.0 %
Residue on Ignition	≤ 1.0 %

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