Description

5-(2-Methoxy-Phenyl)-Isoxazole-3-Carboxylic Acid is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, offering a unique scaffold for molecular diversification. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries for creating new compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic cores.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its isoxazole moiety for bioactivity.
• Material Science Precursor: Serves as a monomer or functionalizing agent in the synthesis of specialized polymers and advanced organic materials.
• Chemical Synthesis Reagent: Employed in academic and industrial R&D for constructing complex molecular architectures via its reactive carboxylic acid and isoxazole groups.
• Ligand Synthesis: Useful for creating chelating ligands in coordination chemistry and catalysis research.

Basic Information

Product Name	5-(2-Methoxy-Phenyl)-Isoxazole-3-Carboxylic Acid
CAS No.	668971-16-2
Molecular Formula	C11H9NO4
Molecular Weight	219.19 g/mol
Synonyms	5-(2-Methoxyphenyl)-1,2-oxazole-3-carboxylic acid; 5-(2-Methoxyphenyl)isoxazole-3-carboxylic acid; 3-Isoxazolecarboxylic acid, 5-(2-methoxyphenyl)-; 668971-16-2; 5-(o-Methoxyphenyl)isoxazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Every batch of 5-(2-Methoxy-Phenyl)-Isoxazole-3-Carboxylic Acid is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the high standards required for research and production. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is supplied with each shipment, and custom specifications can be developed to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible materials. The product is light-sensitive and should be stored away from light.

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.