Description

3-Ethyl-2-Methylbenzoselenazolium 4-Methylbenzenesulphonate is a specialized organic salt primarily used as a key intermediate in the synthesis of functional dyes and advanced materials. This compound is valued for its role in imparting specific photophysical properties, making it critical for high-performance applications. It is essential for manufacturers and R&D laboratories in the organic electronics, specialty dye, and advanced material synthesis sectors.

Application

• Synthesis of Cyanine Dyes: A crucial intermediate for producing near-infrared (NIR) absorbing and fluorescent cyanine dyes used in bioimaging and medical diagnostics.
• Organic Photovoltaic (OPV) Materials: Used in the development of electron-accepting or light-harvesting materials for solar cell applications.
• Non-Linear Optical (NLO) Materials: Serves as a precursor for compounds with NLO properties, applicable in telecommunications and laser technology.
• Photographic Sensitizers: Employed in the formulation of advanced photographic emulsions and sensitizing dyes.
• Research & Development: A vital building block in academic and industrial R&D for exploring new functional organic molecules and polymers.
• Chemical Synthesis: Acts as a versatile reagent or intermediate in various organic synthesis pathways, particularly those involving selenazole chemistry.

Basic Information

Product Name	3-Ethyl-2-Methylbenzoselenazolium 4-Methylbenzenesulphonate
CAS No.	42423-89-2
Molecular Formula	C17H19NO3S2Se
Molecular Weight	420.37 g/mol
Synonyms	3-Ethyl-2-methylbenzoselenazolium p-toluenesulfonate; 3-Ethyl-2-methylbenzoselenazolium tosylate; 2-Methyl-3-ethylbenzoselenazolium 4-methylbenzenesulfonate; BenzoseleNazolium, 3-ethyl-2-methyl-, 4-methylbenzenesulfonate; 3-Ethyl-2-methyl-1,3-benzoselenazol-3-ium 4-methylbenzenesulfonate; SeTos; EMBS Tosylate
EINECS	Contact for details

Quality Control

Our production of 3-Ethyl-2-Methylbenzoselenazolium 4-Methylbenzenesulphonate adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. All materials are characterized using advanced analytical techniques, including HPLC, NMR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under anhydrous conditions to prevent degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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