Description

6-[(Diethylamino)Sulfonyl]-4-((E)-3-[6-[(Diethylamino)Sulfonyl]-1-Ethyl-4(1H)-Quinolinylidene]-1-Propenyl)-1-Ethylquinolinium Iodide is a specialized, high-purity cyanine dye derivative with significant utility in advanced material science and diagnostics. Its core value lies in its strong near-infrared (NIR) absorption and fluorescence properties, making it an essential functional component for light-harvesting and signal generation. This compound is primarily needed by research institutions, diagnostic kit manufacturers, and high-tech material developers working on photovoltaics, bio-imaging probes, and optical sensors.

Application

• NIR Fluorescent Probes & Bio-imaging Agents: Used as a labeling dye for antibodies, proteins, and nucleic acids in in vitro diagnostics (IVD) and live-cell imaging due to its deep tissue penetration and low background interference.
• Organic Photovoltaic (OPV) & Dye-Sensitized Solar Cell (DSSC) Research: Serves as a key light-absorbing sensitizer or electron donor material in the development of next-generation solar energy conversion devices.
• Optical Sensor Development: Incorporated into polymer matrices or thin films to create sensors for detecting specific ions, gases, or biological molecules based on fluorescence quenching or wavelength shifts.
• Laser Dye & Nonlinear Optical Materials: Utilized in the formulation of tunable dye lasers and in the research of materials with high third-order nonlinear optical susceptibility for photonic applications.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer candidate for targeted cancer treatments, where it generates reactive oxygen species upon light activation.
• Chemical Synthesis Intermediate: Acts as a sophisticated building block for synthesizing more complex heptamethine cyanine dyes and conjugated systems with tailored optical properties.

Basic Information

Item	Details
Product Name	6-[(Diethylamino)Sulfonyl]-4-((E)-3-[6-[(Diethylamino)Sulfonyl]-1-Ethyl-4(1H)-Quinolinylidene]-1-Propenyl)-1-Ethylquinolinium Iodide
CAS No.	91776-86-2
Molecular Formula	C₃₃H₄₁IN₄O₄S₂
Molecular Weight	764.73 g/mol
Synonyms	1-Ethyl-6-[(diethylamino)sulfonyl]-4-[(1E)-3-[1-ethyl-6-[(diethylamino)sulfonyl]-1,4-dihydroquinolin-4-ylidene]prop-1-en-1-yl]quinolin-1-ium iodide; Heptamethine cyanine dye derivative; IR-780 related dye; NIR cyanine dye with sulfonyl groups; Cy7-type dye analog; Quinolinium, 6-[(diethylamino)sulfonyl]-4-[(1E)-3-[6-[(diethylamino)sulfonyl]-1-ethyl-1,4-dihydro-4-quinolinylidene]-1-propen-1-yl]-1-ethyl-, iodide (1:1)
EINECS	Contact for details

Quality Control

Our production of this advanced cyanine dye adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability for critical research and development. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity, purity, and optical properties. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, absorbance/fluorescence maxima, and extinction coefficient is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, cool place. The product is light-sensitive and should be handled under subdued lighting where practical. For long-term storage over 12 months, consider storage at 2-8°C under an inert atmosphere to maximize stability.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 1.0%
Absorption Max (λmax)	760 - 790 nm (in suitable solvent)
Extinction Coefficient (ε)	≥ 180,000 L·mol⁻¹·cm⁻¹ (at λmax)

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