Description

5-Methoxy-3-oxo-pentanoic acid ethyl ester is a versatile β-keto ester derivative, a crucial building block in organic synthesis. Its value lies in its bifunctional reactivity, serving as a key precursor for constructing complex heterocyclic and pharmaceutical intermediates. This compound is essential for R&D chemists and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries, enabling the synthesis of active molecules through efficient condensation and cyclization reactions.

Application

• Pharmaceutical Intermediate: A key synthon in the production of active pharmaceutical ingredients (APIs), particularly for compounds containing pyridine, pyrimidine, or other nitrogenous heterocycles.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators requiring specific β-keto ester backbones.
• Fine Chemical Production: Serves as a fundamental building block for synthesizing complex flavors, fragrances, and specialty chemicals.
• Academic & Industrial R&D: Employed in research laboratories for method development and the exploration of novel synthetic pathways in medicinal chemistry.
• Material Science Precursor: Potential use in the synthesis of organic ligands or monomers for advanced polymeric materials.

Basic Information

Product Name	5-Methoxy-3-oxo-pentanoic acid ethyl ester
CAS No.	104629-86-9
Molecular Formula	C8H14O4
Molecular Weight	174.19 g/mol
Synonyms	Ethyl 5-methoxy-3-oxopentanoate; Ethyl 3-oxo-5-methoxypentanoate; 3-Oxo-5-methoxypentanoic acid ethyl ester; 5-Methoxy-3-oxopentanoic acid ethyl ester; Acetoacetic ester 5-methoxy derivative; 1-Ethoxy-5-methoxypentane-1,3-dione; β-Ketopentanoic acid, 5-methoxy-, ethyl ester
EINECS	Contact for details

Quality Control

Our 5-Methoxy-3-oxo-pentanoic acid ethyl ester is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopy (IR, NMR), to ensure high purity and consistency. A Certificate of Analysis (COA) detailing specific batch results is provided with every shipment to guarantee compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as oxidizing agents. The container must be kept tightly sealed to prevent moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
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.