Description

Benzonitrile Oxide is a versatile and highly reactive 1,3-dipole, widely utilized as a key building block in organic synthesis. Its primary value lies in its ability to undergo 1,3-dipolar cycloaddition reactions, enabling the efficient construction of complex heterocyclic frameworks. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials industries, where it is used to create novel isoxazoline and isoxazole derivatives.

Application

• Pharmaceutical Intermediate: A critical precursor for synthesizing isoxazoline and isoxazole rings, which are core structures in numerous active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides that incorporate the isoxazoline pharmacophore for enhanced efficacy.
• Material Science Research: Employed in click chemistry and polymer modification to create functionalized materials with specific properties.
• Chemical Biology & Bioconjugation: Serves as a bioorthogonal reagent for labeling and modifying biomolecules under mild physiological conditions.
• Academic & R&D Laboratories: A fundamental reagent for methodological development in synthetic organic chemistry and catalysis studies.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals and flavors & fragrances.

Basic Information

Item	Details
Product Name	Benzonitrile Oxide
CAS No.	873-67-6
Molecular Formula	C7H5NO
Molecular Weight	119.12 g/mol
Synonyms	Benzonitrile, N-oxide; Benzoyl nitrile oxide; Benzonitrile N-oxide; Phenyl nitrile oxide; NSC 406908; Benzonitrile oxide (stabilized); 1,3-Diphenylbenzonitrile oxide precursor; Benzonitrile, oxide
EINECS	212-848-9

Quality Control

Our Benzonitrile Oxide is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity determination, to meet the exacting standards required for research and process chemistry. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming identity, purity, and relevant specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. For long-term stability, it is recommended to store under an inert atmosphere at temperatures between 2°C and 8°C. Keep away from heat, sparks, and open flames. This material is typically supplied in stabilized form; refer to the specific product label and Safety Data Sheet for detailed handling instructions.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (HPLC)	≥ 98.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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