Description

3-Ethyl-2-[2-[[5-Methoxy-3-(4-Sulphonatobutyl)Benzoselenazol-2(3H)-Ylidene]Methyl]But-1-Enyl]-5,6-Dimethylbenzothiazolium is a specialized organic salt belonging to the cyanine dye family, characterized by its unique benzoselenazolium and benzothiazolium heterocyclic structure. This compound is valued for its strong near-infrared (NIR) absorption and fluorescence properties, making it a critical functional material in advanced photonic and electronic applications. It is primarily utilized by research institutions and industrial manufacturers developing optical sensors, laser dyes, and non-linear optical materials.

Application

• NIR Fluorescent Dyes & Probes: A key chromophore for synthesizing fluorescent labels and probes used in bioimaging, medical diagnostics, and chemical sensing.
• Optical Sensor Fabrication: Integration into thin films and polymer matrices to create sensitive layers for detecting gases, ions, or biological molecules.
• Laser Gain Media: Used as a dopant in solid-state or liquid dye lasers operating in the near-infrared spectrum.
• Non-Linear Optical (NLO) Materials: A building block for advanced materials used in optical limiting, frequency doubling, and electro-optic modulation devices.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer candidate due to its light-absorbing characteristics.
• Organic Photovoltaic (OPV) Research: Serves as an electron donor or acceptor material in the development of next-generation solar cells.

Basic Information

Product Name	3-Ethyl-2-[2-[[5-Methoxy-3-(4-Sulphonatobutyl)Benzoselenazol-2(3H)-Ylidene]Methyl]But-1-Enyl]-5,6-Dimethylbenzothiazolium
CAS No.	85050-03-9
Molecular Formula	C30H37N2O4S2Se
Molecular Weight	632.70 g/mol
Synonyms	3-Ethyl-2-[2-[(5-methoxy-3-(4-sulfonatobutyl)-2(3H)-benzoselenazolylidene)methyl]-1-butenyl]-5,6-dimethylbenzothiazolium; Cyanine dye selenium analog; NIR cyanine dye salt; Benzothiazolium, 3-ethyl-2-[2-[[5-methoxy-3-(4-sulfonatobutyl)-2(3H)-benzoselenazolylidene]methyl]-1-butenyl]-5,6-dimethyl-; Heptamethine cyanine dye with sulfonate group; IR-1061 analog; Selenazole cyanine dye
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty chemical adheres to stringent ISO 9001 quality management standards. Every batch is characterized using advanced analytical techniques including HPLC, NMR, and Mass Spectrometry to confirm structural identity and purity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to ensure traceability and compliance with your research or production 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). This compound is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to air, moisture, or light may affect performance. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 5.0 %
Residue on Ignition	≤ 1.0 %
Absorption λmax	Contact for details

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