Description

4-Methoxy-2-Methyl-3-Oxo-Butyric Acid Ethyl Ester is a high-purity organic ester building block with significant synthetic utility. Its value lies in its versatile β-ketoester functionality, which is crucial for constructing complex molecular frameworks in advanced chemical synthesis. This product is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and fine chemical industries seeking reliable intermediates for condensation and cyclization reactions.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for heterocyclic compounds and complex molecules.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, leveraging its reactivity to form specific active cores.
• Fine Chemical Production: Serves as a versatile building block for fragrances, flavors, and specialty chemicals requiring specific ketone and ester functionalities.
• Academic & Industrial R&D: Employed in methodological development and scale-up studies for novel organic reactions, including Claisen condensations and Michael additions.
• Material Science Precursor: Potential use in the synthesis of organic ligands and monomers for advanced polymeric materials.

Basic Information

Product Name	4-Methoxy-2-Methyl-3-Oxo-Butyric Acid Ethyl Ester
CAS No.	14966-69-9
Molecular Formula	C8H14O4
Molecular Weight	174.19 g/mol
Synonyms	Ethyl 4-Methoxy-2-methyl-3-oxobutanoate; Ethyl 2-Methyl-4-methoxy-3-oxobutyrate; 3-Oxobutyric acid, 4-methoxy-2-methyl-, ethyl ester; 4-Methoxy-2-methylacetoacetic acid ethyl ester; MMOB ethyl ester; 2-Methyl-4-methoxy-3-oxobutanoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 4-Methoxy-2-Methyl-3-Oxo-Butyric Acid Ethyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (IR, NMR), to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, ensuring full traceability and compliance with customer and industry requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed when not in use to minimize exposure to moisture and air.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
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.