Description

1,2-Benzisoselenazole is a specialized organoselenium compound of significant interest in advanced chemical synthesis and materials science. Its unique heterocyclic structure, featuring a selenium-nitrogen bond, makes it a valuable precursor and building block for developing novel reagents and functional materials. This high-purity intermediate is primarily utilized by research institutions and industrial R&D departments focused on pharmaceuticals, agrochemicals, and electronic materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those exploring selenium's biological activity.
• Agrochemical Research: Used in the synthesis of novel fungicides, herbicides, and plant growth regulators that incorporate selenium heterocycles.
• Material Science Precursor: Acts as a building block for creating selenium-containing polymers, ligands for catalysis, and advanced organic electronic materials.
• Catalyst & Ligand Development: Employed in the design of new organoselenium catalysts and ligands for asymmetric synthesis and other specialized chemical transformations.
• Academic & Industrial R&D: A critical reagent for fundamental studies in heterocyclic and organoselenium chemistry within university and corporate research laboratories.

Basic Information

Product Name	1,2-Benzisoselenazole
CAS No.	272-31-1
Molecular Formula	C7H5NSe
Molecular Weight	184.08 g/mol
Synonyms	1,2-Benzisoselenazole; 1,2-Benzisoselenazol-3(2H)-one (common tautomer); Benzo[d]isoselenazol-3(2H)-one; 2,1-Benzisoselenazol-3-one; Ebselen intermediate; PZ 51 (Research Code); Selenium analog of Saccharin
EINECS	205-983-1

Quality Control

Our 1,2-Benzisoselenazole is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and tests for residual solvents and heavy metals. We provide a detailed Certificate of Analysis (COA) with every 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, and well-ventilated place at a controlled room temperature (15-25°C). The compound is light-sensitive and should be handled under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	190 - 195 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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