Description

3-(1-Methyl-1H-Pyrazol-4-Yl)-4,5-Dihydro-Isoxazole-5-Carboxylic Acid is a high-value heterocyclic building block and advanced pharmaceutical intermediate. This compound is critical for the synthesis of novel active pharmaceutical ingredients (APIs) and agrochemicals, offering a versatile scaffold for medicinal chemistry. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries for developing new therapeutic and crop protection agents.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in oncology and anti-inflammatory research.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides due to its bioactive isoxazole-pyrazole hybrid structure.
• Medicinal Chemistry Research: Serves as a versatile scaffold for structure-activity relationship (SAR) studies and library synthesis in drug discovery.
• Fine Chemical Production: Intermediate for the manufacture of complex, high-value specialty chemicals.
• Contract Research & Development (CRO/CMO): Supplied to organizations engaged in custom synthesis and process development.
• Academic Research: Utilized in university and institutional labs for heterocyclic chemistry and synthetic methodology studies.

Basic Information

Product Name	3-(1-Methyl-1H-Pyrazol-4-Yl)-4,5-Dihydro-Isoxazole-5-Carboxylic Acid
CAS No.	957503-54-7
Molecular Formula	C9H9N3O3
Molecular Weight	207.19 g/mol
Synonyms	5-Isoxazolecarboxylic acid, 4,5-dihydro-3-(1-methyl-1H-pyrazol-4-yl)-; 3-(1-Methyl-1H-pyrazol-4-yl)-4,5-dihydroisoxazole-5-carboxylic acid; 4,5-Dihydro-3-(1-methyl-1H-pyrazol-4-yl)-5-isoxazolecarboxylic acid; 5-Carboxy-3-(1-methylpyrazol-4-yl)-4,5-dihydroisoxazole; CAS 957503-54-7
EINECS	Contact for details

Quality Control

Our 3-(1-Methyl-1H-Pyrazol-4-Yl)-4,5-Dihydro-Isoxazole-5-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider inert atmosphere conditions to maintain optimal stability.

Specification

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