Description

3-Butenoic Acid, 4-Ethoxy-2-Oxo-, Ethyl Ester is a specialized organic ester compound featuring a reactive butenoic acid backbone with ethoxy and oxo functional groups. This unique structure makes it a valuable versatile building block and intermediate for synthesizing more complex molecules in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process developers in the pharmaceutical, agrochemical, and advanced material sectors for constructing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly those requiring functionalized butenoate structures.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where its reactive sites allow for structural diversification.
• Fine Chemical Production: Acts as a precursor for synthesizing flavors, fragrances, and other specialty organic compounds.
• Polymer & Material Science: Employed as a monomer or cross-linking agent in the development of specialty polymers with tailored properties.
• Organic Synthesis Research: A valuable reagent in academic and industrial laboratories for methodology development and constructing complex molecular architectures via reactions like Michael additions or cyclizations.

Basic Information

Product Name	3-Butenoic Acid, 4-Ethoxy-2-Oxo-, Ethyl Ester
CAS No.	76240-19-2
Molecular Formula	C9H14O4
Molecular Weight	186.21 g/mol
Synonyms	Ethyl 4-ethoxy-2-oxobut-3-enoate; 4-Ethoxy-2-oxo-3-butenoic acid ethyl ester; 2-Oxo-4-ethoxy-3-butenoic acid ethyl ester; But-3-enoic acid, 4-ethoxy-2-oxo-, ethyl ester; Ethyl (4-ethoxy-2-oxobut-3-enoate); 3-Butenoic acid, 4-ethoxy-2-oxo-, ethyl ester
EINECS	Contact for details

Quality Control

Our 3-Butenoic Acid, 4-Ethoxy-2-Oxo-, Ethyl Ester is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay purity and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). The product is sensitive to strong bases and should be kept away from incompatible materials such as strong alkalis and oxidizing agents. Keep the container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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