Description

3-Isoxazolecarboxylicacid,4,5-Dimethyl-,Methylester(9Ci) is a specialized heterocyclic building block with the CAS registry number 160850-61-3. This compound matters as a versatile synthon for constructing complex molecules, particularly in the development of novel active pharmaceutical ingredients and advanced agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for lead optimization and scalable synthesis.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting central nervous system (CNS) and anti-infective agents.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides, fungicides, and insecticides, leveraging the isoxazole ring's bioactivity.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other performance chemicals requiring specific heterocyclic architectures.
• Material Science Research: Investigated as a monomer or additive for creating polymers with unique thermal or optical properties.
• Academic & Contract Research: Essential for methodological studies in organic synthesis and heterocyclic chemistry at universities and CROs (Contract Research Organizations).

Basic Information

Product Name	3-Isoxazolecarboxylicacid,4,5-Dimethyl-,Methylester(9Ci)
CAS No.	160850-61-3
Molecular Formula	C7H9NO3
Molecular Weight	155.15 g/mol
Synonyms	Methyl 4,5-dimethyl-1,2-oxazole-3-carboxylate; 4,5-Dimethylisoxazole-3-carboxylic acid methyl ester; 3-Carbomethoxy-4,5-dimethylisoxazole; 4,5-Dimethyl-3-methoxycarbonylisoxazole; Methyl 4,5-dimethylisoxazole-3-carboxylate; 4,5-Dimethyl-3-isoxazolecarboxylic acid methyl ester; 160850-61-3; 4,5-Dimethyl-1,2-oxazole-3-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our 3-Isoxazolecarboxylicacid,4,5-Dimethyl-,Methylester(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for every shipment. We support compliance with cGMP and ICH Q7 guidelines for advanced intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly closed in a dry and inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 3.0% Any single impurity ≤ 1.0%

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