Description

3-(1,5-Dimethyl-1H-Pyrazol-4-Yl)Isoxazole-5-Carboxylic Acid (Saltdata: Free) is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique fused pyrazole-isoxazole structure enables the creation of molecules with targeted biological activity. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to innovate new therapeutic and crop protection solutions.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting inflammation, oncology, and central nervous system (CNS) disorders.
• Agrochemical Research: Serves as a key precursor in the development of next-generation herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Chemical Biology & Proteomics: Used in the design and synthesis of chemical probes, enzyme inhibitors, and molecular tags for studying biological pathways and protein function.
• Material Science Precursor: Potential intermediate for synthesizing specialized polymers, ligands for catalysis, or organic electronic materials due to its functional carboxylic acid group and aromatic system.
• Contract Research & Development (CRO/CDMO): Supplied to service organizations supporting custom synthesis and scale-up projects for client-specific molecular targets.
• Academic Research: Utilized in university and institutional laboratories for methodological studies in heterocyclic chemistry and the exploration of new synthetic routes.

Basic Information

Product Name	3-(1,5-Dimethyl-1H-Pyrazol-4-Yl)Isoxazole-5-Carboxylic Acid (Saltdata: Free)
CAS No.	957484-18-3
Molecular Formula	C9H9N3O3
Molecular Weight	207.19 g/mol
Synonyms	3-(1,5-Dimethyl-1H-pyrazol-4-yl)-1,2-oxazole-5-carboxylic acid; 5-Isoxazolecarboxylic acid, 3-(1,5-dimethyl-1H-pyrazol-4-yl)-; 3-(1,5-Dimethylpyrazol-4-yl)isoxazole-5-carboxylic acid; 4-(5-Carboxyisoxazol-3-yl)-1,5-dimethyl-1H-pyrazole; 957484-18-3; Free acid of 3-(1,5-dimethyl-1H-pyrazol-4-yl)isoxazole-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-(1,5-Dimethyl-1H-Pyrazol-4-Yl)Isoxazole-5-Carboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets exacting standards for research and process chemistry. Certificates of Analysis (COA) with detailed batch-specific results are provided to guarantee traceability, consistency, and compliance with your project 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 (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
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.