Description

2-[2-[(3-Ethyl-5,6-Dimethyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]-6-Methoxy-5-Methyl-3-(3-Sulphonatopropyl)Benzoselenazolium CAS NO 93857-70-6 is a specialized organic selenium compound belonging to the cyanine dye family, characterized by its benzoselenazolium core and sulfonate group. This structure is engineered for exceptional photostability and near-infrared (NIR) absorption/emission properties, making it a critical functional material. It is primarily sought after by manufacturers and researchers in the advanced materials, semiconductor, and photonics sectors for developing next-generation optoelectronic devices and sensors.

Application

• NIR-Sensitive Dye for Optical Materials: A key component in the formulation of dyes and pigments for laser applications, optical filters, and light-absorbing coatings.
• Photosensitizer in Semiconductor Research: Used in the development and testing of organic photovoltaics (OPV), dye-sensitized solar cells (DSSCs), and other light-harvesting systems.
• Fluorescent Probe and Marker: Serves as a specialized fluorescent tag in biochemical and materials science research due to its unique emission profile.
• Non-Linear Optical (NLO) Material: Investigated for use in frequency doubling, optical limiting, and other NLO devices requiring specific chromophores.
• Specialty Chemical Intermediate: Acts as a precursor or building block for synthesizing more complex selenium-containing heterocyclic compounds.

Basic Information

Product Name	2-[2-[(3-Ethyl-5,6-Dimethyl-3H-Benzoselenazol-2-Ylidene)Methyl]But-1-Enyl]-6-Methoxy-5-Methyl-3-(3-Sulphonatopropyl)Benzoselenazolium
CAS No.	93857-70-6
Molecular Formula	C31H39N2O4SSe2+ • (Counterion)-
Molecular Weight	Contact for details
Synonyms	Benzoselenazolium, 2-[2-[(3-ethyl-5,6-dimethyl-3H-benzoselenazol-2-ylidene)methyl]-1-butenyl]-6-methoxy-5-methyl-3-(3-sulfopropyl)-, inner salt; Cyanine dye selenium analog; NIR cyanine dye with sulfonate group; 3H-Benzoselenazolium, 2-[2-[(3-ethyl-5,6-dimethyl-3H-benzoselenazol-2-ylidene)methyl]-1-butenyl]-6-methoxy-5-methyl-3-(3-sulfopropyl)-, hydroxide, inner salt; Selenocyanine dye; Sulfonated benzoselenazolium dye.
EINECS	Contact for details

Quality Control

Our production of this high-purity specialty chemical adheres to strict in-process controls to ensure batch-to-batch consistency and performance reliability. Every lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Dark green to black crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Specific Absorption (Lambda max)	Contact for details

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