Description

Ethyl 3-Methylisoxazole-4-Carboxylate is a versatile heterocyclic building block and key synthetic intermediate prized for its reactive carboxylate ester and isoxazole functionalities. This compound is essential for the efficient synthesis of complex molecules, enabling the development of novel active ingredients. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for creating new drug candidates and crop protection agents.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of various active pharmaceutical ingredients (APIs), particularly those containing the isoxazole pharmacophore.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides, contributing to novel modes of action.
• Chemical Research & Development: Serves as a versatile scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Material Science Precursor: Can be utilized in the development of specialty polymers and functional materials requiring heterocyclic components.
• Fine Chemical Production: Employed in multi-step synthetic routes for producing complex fine chemicals and specialty compounds.

Basic Information

Product Name	Ethyl 3-Methylisoxazole-4-Carboxylate
CAS No.	20328-15-8
Molecular Formula	C7H9NO3
Molecular Weight	155.15 g/mol
Synonyms	4-Carbethoxy-3-methylisoxazole; Ethyl 3-methyl-1,2-oxazole-4-carboxylate; 3-Methyl-4-carbethoxyisoxazole; Ethyl 3-methylisoxazole-4-carboxylate; 3-Methylisoxazole-4-carboxylic acid ethyl ester; 4-Isoxazolecarboxylic acid, 3-methyl-, ethyl ester; NSC 163022
EINECS	Contact for details

Quality Control

Our Ethyl 3-Methylisoxazole-4-Carboxylate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our commitment to cGMP principles and traceability guarantees a reliable supply for critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	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.