Description

(E)-Ethyl 4-(4-Methoxyphenyl)-4-Oxobut-2-Enoate is a high-purity, versatile α,β-unsaturated ester building block with significant synthetic utility. This compound is valued for its role as a key intermediate in the synthesis of complex organic molecules, particularly in pharmaceutical and fine chemical research. It is essential for chemists and manufacturers in the pharmaceutical, agrochemical, and advanced material sectors who require reliable, high-quality intermediates for complex synthesis.

Application

• Pharmaceutical Intermediate: A crucial building block for synthesizing active pharmaceutical ingredients (APIs), particularly those with chalcone or flavonoid-like structures.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and specialty polymers requiring specific optical or electronic properties.
• Organic Synthesis Research: Employed in academic and industrial R&D for Michael addition reactions, cyclization reactions, and the construction of heterocyclic compounds.
• Material Science: Investigated as a monomer or cross-linking agent for advanced polymeric materials.

Basic Information

Product Name	(E)-Ethyl 4-(4-Methoxyphenyl)-4-Oxobut-2-Enoate
CAS No.	127427-28-5
Molecular Formula	C₁₃H₁₄O₄
Molecular Weight	234.25 g/mol
Synonyms	Ethyl (E)-4-(4-Methoxyphenyl)-4-oxobut-2-enoate; (E)-Ethyl 4-(4-Methoxyphenyl)-4-oxo-2-butenoate; Ethyl 4-(4-Methoxyphenyl)-4-oxo-2-butenoate; 4-(4-Methoxyphenyl)-4-oxo-2-butenoic Acid Ethyl Ester; 4-Oxo-4-(4-methoxyphenyl)-2-butenoic Acid Ethyl Ester; (E)-4-(4-Methoxyphenyl)-4-oxobut-2-enoic Acid Ethyl Ester; 127427-28-5
EINECS	Contact for details

Quality Control

Our (E)-Ethyl 4-(4-Methoxyphenyl)-4-Oxobut-2-Enoate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.