Description

Isoxazolo[5,4-E]-2,1,3-Benzoxadiazole (9Ci) is a specialized heterocyclic organic compound with the CAS registry number 133818-22-1. This fused-ring structure is of significant interest in advanced organic synthesis and materials science research. It serves as a valuable building block and intermediate for researchers and developers in high-tech chemical sectors. Key industries that utilize this compound include pharmaceutical R&D for novel drug discovery and the development of advanced functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel bioactive molecules and potential active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with unique modes of action.
• Materials Science: Acts as a building block for creating advanced organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors.
• Dye & Pigment Synthesis: Employed in the research and production of specialized dyes and colorants with enhanced properties.
• Academic & Industrial R&D: A crucial reagent for methodological studies in heterocyclic and fused-ring system chemistry.
• Ligand & Catalyst Development: Used in the design of novel ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	Isoxazolo[5,4-E]-2,1,3-Benzoxadiazole (9Ci)
CAS No.	133818-22-1
Molecular Formula	C8H3N3O2
Molecular Weight	173.13 g/mol
Synonyms	Isoxazolo[5,4-e]-2,1,3-benzoxadiazole; 2,1,3-Benzoxadiazole, isoxazolo[5,4-e]-; Isoxazolo(5,4-e)benz-2,1,3-oxadiazole; 9CI Index Name; Furoxano[3,4-e]benzoxadiazole (related structure); [1,2,5]Oxadiazolo[3,4-e]benzoxazole; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Isoxazolo[5,4-E]-2,1,3-Benzoxadiazole (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (HPLC), related substances, and physical characteristics are available for every shipment. We adhere to cGMP principles where applicable to support our clients' research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. The compound is light-sensitive and should be handled and stored accordingly to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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