Description

2-Formyl-3-Oxo-Butyric Acid Ethyl Ester is a versatile keto-aldehyde ester that serves as a critical building block in advanced organic synthesis. Its bifunctional nature, featuring both formyl and keto groups, makes it a valuable precursor for constructing complex heterocyclic and pharmaceutical intermediates. This compound is essential for research and production chemists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various heterocyclic compounds, including pyrazoles, isoxazoles, and fused ring systems with potential biological activity.
• Agrochemical Synthesis: Used in the manufacture of advanced pesticide and herbicide molecules, leveraging its reactivity to create complex side chains and active cores.
• Fine Chemical Production: Serves as a versatile starting material for specialty chemicals, dyes, and functional polymers requiring specific keto-aldehyde motifs.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and creating libraries of novel chemical entities.
• Flavor & Fragrance Ingredient Synthesis: Employed in the controlled synthesis of complex ester and lactone structures that contribute to specific aroma profiles.

Basic Information

Product Name	2-Formyl-3-Oxo-Butyric Acid Ethyl Ester
CAS No.	33142-24-4
Molecular Formula	C7H10O4
Molecular Weight	158.15 g/mol
Synonyms	Ethyl 2-Formyl-3-oxobutanoate; Ethyl 3-Oxo-2-formylbutyrate; 3-Oxo-2-formylbutyric Acid Ethyl Ester; 2-Formylacetoacetic Acid Ethyl Ester; Acetoacetic Aldehyde Ethyl Ester; Ethyl (3-Oxo-1-butenyl)glyoxylate; 1-Buten-1-one, 3-oxo-, O2-ethyl oxime (tautomer); EINECS 251-389-3
EINECS	251-389-3

Quality Control

Our 2-Formyl-3-Oxo-Butyric Acid Ethyl Ester is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, documenting all critical parameters. Our quality commitment ensures the material meets the high standards required for sensitive synthetic applications in regulated industries.

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. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

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