Description

5-Pyridin-3-Ylisoxazole-4-Carboxylic Acid is a heterocyclic carboxylic acid derivative that serves as a versatile and high-value synthetic building block. Its unique isoxazole-pyridine fused structure makes it a critical intermediate for the development of novel active pharmaceutical ingredients (APIs) and advanced agrochemicals. This compound is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and infectious diseases.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides, leveraging its heterocyclic scaffold for bioactivity.
• Ligand Synthesis: Serves as a starting material for creating complex chelating ligands used in catalysis and material science.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme function and biological pathways.
• Advanced Material Development: A building block for organic electronic materials and metal-organic frameworks (MOFs) due to its rigid, conjugated structure.

Basic Information

Product Name	5-Pyridin-3-Ylisoxazole-4-Carboxylic Acid
CAS No.	954230-79-6
Molecular Formula	C9H6N2O3
Molecular Weight	190.16 g/mol
Synonyms	5-(3-Pyridinyl)-4-isoxazolecarboxylic Acid; 5-(Pyridin-3-yl)isoxazole-4-carboxylic Acid; 3-Pyridin-3-yl-1,2-oxazole-4-carboxylic Acid; 5-(3-Pyridyl)-4-isoxazolecarboxylic Acid; 954230-79-6; AI3-52315; ZINC000103014535
EINECS	Contact for details

Quality Control

Our 5-Pyridin-3-Ylisoxazole-4-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide a detailed Certificate of Analysis (COA) with every shipment to ensure traceability and compliance with your research or cGMP starting material requirements.

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). The compound may be hygroscopic; keep the container tightly sealed in a dry environment.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.