Description

6-Chlorobenzo[D]Isoxazole-3-Carboxylic Acid CAS NO 28691-49-8 is a high-purity heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique isoxazole core functionalized with a carboxylic acid group makes it a versatile intermediate for constructing complex molecular architectures. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of new active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-inflammatory applications.
• Agrochemical Synthesis: Used in the research and development of new herbicides and fungicides, leveraging its heterocyclic structure for bioactivity.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex heterocyclic compounds, including fused ring systems.
• Material Science Research: Investigated as a monomer or functional component in the development of specialty polymers and advanced organic materials.
• Chemical Reference Standard: Serves as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	6-Chlorobenzo[D]Isoxazole-3-Carboxylic Acid
CAS No.	28691-49-8
Molecular Formula	C8H4ClNO3
Molecular Weight	197.57 g/mol
Synonyms	6-Chloro-1,2-benzisoxazole-3-carboxylic acid; 6-Chloro-1,2-benzoxazole-3-carboxylic acid; 3-Carboxy-6-chlorobenzo[d]isoxazole; 6-Chlorobenzo[d]isoxazole-3-carboxylic acid; 28691-49-8; 6-Chloro-benzo[d]isoxazole-3-carboxylic acid; 6-Chloro-1,2-benzisoxazol-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 6-Chlorobenzo[D]Isoxazole-3-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for pharmaceutical and research applications. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. The container must be kept tightly closed to protect the contents from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.