Description

4-Isoxazolecarbonyl Chloride, 3-Methyl-5-(1-Methylethyl)- (9Ci) is a specialized heterocyclic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its high reactivity, enabling the efficient introduction of the 3-methyl-5-isopropylisoxazole-4-carbonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing novel active ingredients.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly for creating amide or ester derivatives with biological activity.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides that incorporate the isoxazole ring system.
• Material Science Research: Acts as a monomer or coupling agent for creating novel polymers and functional materials with specific properties.
• Chemical Biology Probes: Employed to synthesize labeled compounds or activity-based probes for studying enzymatic processes and protein interactions.
• Custom Synthesis & Contract Manufacturing: A vital reagent for fine chemical suppliers offering bespoke synthesis services to clients in R&D.

Basic Information

Product Name	4-Isoxazolecarbonyl Chloride, 3-Methyl-5-(1-Methylethyl)- (9Ci)
CAS No.	90006-55-6
Molecular Formula	C8H10ClNO2
Molecular Weight	187.62 g/mol
Synonyms	3-Methyl-5-isopropylisoxazole-4-carbonyl chloride; 5-Isopropyl-3-methyl-4-isoxazolecarbonyl chloride; 4-Carbonyl chloride-3-methyl-5-(1-methylethyl)isoxazole; 3-Methyl-5-(propan-2-yl)-1,2-oxazole-4-carbonyl chloride; Isoxazole-4-carbonyl chloride, 3-methyl-5-(1-methylethyl)-; 90006-55-6
EINECS	Contact for details

Quality Control

Our production of 4-Isoxazolecarbonyl Chloride adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting R&D and process chemistry standards. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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