Description

1,2-Benzisoxazol-3(2H)-One,5-Fluoro-(9Ci) is a specialized fluorinated heterocyclic compound, also known by its CAS number 99822-23-8. This high-purity intermediate is valued for its unique chemical structure, which serves as a critical building block in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Synthesis: Used in the creation of advanced herbicides and pesticides, where the fluorine atom enhances biological activity and metabolic stability.
• Chemical Research: Serves as a versatile scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Material Science Precursor: Potential use in the synthesis of specialty polymers and advanced organic electronic materials.
• Fluorination Chemistry Studies: Employed as a model compound in academic and industrial research focused on fluorinated heterocycles.

Basic Information

Product Name	1,2-Benzisoxazol-3(2H)-One,5-Fluoro-(9Ci)
CAS No.	99822-23-8
Molecular Formula	C7H4FNO2
Molecular Weight	153.11 g/mol
Synonyms	5-Fluoro-1,2-benzisoxazol-3(2H)-one; 5-Fluoro-3-hydroxy-1,2-benzisoxazole; 5-Fluoro-2,1-benzisoxazol-3-ol; 5-Fluoro-3H-1,2-benzoxazol-3-one; 99822-23-8; 5-Fluoro-1,2-benzisoxazol-3-ol; 5-Fluoro-2,1-benzisoxazol-3-one
EINECS	Contact for details

Quality Control

Our 1,2-Benzisoxazol-3(2H)-One,5-Fluoro-(9Ci) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research and development applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We ensure compliance with relevant industry standards and can provide material for GMP synthesis upon request.

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). Keep away from incompatible materials such as strong bases and fluorinating agents. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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