Description

5-Isoxazolecarboxaldehyde, 3-Butyl- (9Ci) is a specialized heterocyclic aldehyde building block with significant utility in advanced organic synthesis. Its core value lies in its reactive aldehyde group and the unique isoxazole scaffold, making it a versatile precursor for constructing complex molecules. This compound is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of new drug candidates, particularly those targeting neurological disorders and infectious diseases.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides, leveraging the bioactivity of the isoxazole ring.
• Ligand and Catalyst Development: Serves as a precursor for creating specialized ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Material Science Research: Employed in the synthesis of organic semiconductors, fluorescent dyes, and other functional organic materials.
• Chemical Biology Probes: Useful for synthesizing molecular probes to study enzyme function and biological pathways.
• Custom Synthesis and Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthetic projects.

Basic Information

Product Name	5-Isoxazolecarboxaldehyde, 3-Butyl- (9Ci)
CAS No.	556782-69-5
Molecular Formula	C8H11NO2
Molecular Weight	153.18 g/mol
Synonyms	3-Butyl-5-isoxazolecarboxaldehyde; 3-Butylisoxazole-5-carbaldehyde; 3-n-Butylisoxazole-5-carboxaldehyde; 5-Formyl-3-butylisoxazole; 3-Butyl-1,2-oxazole-5-carbaldehyde; Isoxazole-5-carboxaldehyde, 3-butyl-; 556782-69-5
EINECS	Contact for details

Quality Control

Our 5-Isoxazolecarboxaldehyde, 3-Butyl- (9Ci) is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. We provide comprehensive analytical data including HPLC purity, NMR, and mass spectrometry for identity confirmation. Certificates of Analysis (COA) are available for every batch and provided upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.