Description

3-Ethoxy-2-Methyl-3-Oxopropanoic Acid is a versatile ester derivative of pyruvic acid, serving as a key synthetic intermediate in organic chemistry. Its value lies in its bifunctional reactivity, offering both a ketone and an ester group for selective transformations. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors, where it is used to construct complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules containing β-ketoester motifs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that require specific keto-acid frameworks.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and specialty chemicals where controlled functional group manipulation is required.
• Organic Synthesis Research: Employed in academic and industrial R&D for Claisen condensations, Michael additions, and other carbon-carbon bond-forming reactions.
• Flavor and Fragrance Ingredient Synthesis: Acts as an intermediate for creating complex esters and lactones used in aroma compounds.
• Polymer Chemistry: Can be utilized as a monomer or co-monomer for specialty polymers with tailored properties.

Basic Information

Product Name	3-Ethoxy-2-Methyl-3-Oxopropanoic Acid
CAS No.	2985-33-3
Molecular Formula	C6H10O4
Molecular Weight	146.14 g/mol
Synonyms	Ethyl 2-methyl-3-oxopropanoate; 2-Methyl-3-oxopropanoic acid ethyl ester; Ethyl 2-methyl-3-oxopropionate; Ethyl methyloxaloacetate; Ethyl 2-methyl-3-oxobutyrate (common misnomer); 3-Oxobutan-2-oic acid ethyl ester; Ethyl 2-methyl-3-oxobutanoate; Ethyl acetoacetate, 2-methyl-
EINECS	221-047-5

Quality Control

Our 3-Ethoxy-2-Methyl-3-Oxopropanoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 heat, sparks, and open flame. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/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.