Description

(Z)-4-Oxo-2-Pentenoic Acid Methyl Ester is a high-purity, unsaturated keto-ester building block of significant importance in advanced organic synthesis. Its conjugated system and functional groups make it a versatile intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to develop active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: A key synthon for the production of heterocyclic compounds, prostaglandin analogs, and other bioactive molecules.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, leveraging its reactive enone structure.
• Flavor & Fragrance Chemistry: Serves as a precursor for synthesizing specific lactones and unsaturated esters used in aroma compounds.
• Material Science Research: Employed as a monomer or cross-linking agent in the development of specialized polymers and resins.
• Academic & R&D Laboratories: A valuable reagent for methodological studies in organic chemistry, including cycloadditions and conjugate additions.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals.

Basic Information

Product Name	(Z)-4-Oxo-2-Pentenoic Acid Methyl Ester
CAS No.	19522-27-1
Molecular Formula	C6H8O3
Molecular Weight	128.13 g/mol
Synonyms	Methyl (Z)-4-oxopent-2-enoate; (Z)-4-Oxo-2-pentenoic acid methyl ester; Methyl 4-oxo-2-pentenoate; 2-Pentenoic acid, 4-oxo-, methyl ester, (Z)-; Methyl (Z)-4-oxo-2-pentenate; 4-Oxo-2-pentenoic acid methyl ester (Z-isomer); trans-4-Oxo-2-pentenoic acid methyl ester (commonly used, but note stereochemistry)
EINECS	Contact for details

Quality Control

We supply (Z)-4-Oxo-2-Pentenoic Acid Methyl Ester in high-purity grades suitable for demanding synthetic applications. Our products undergo rigorous quality testing, including chromatographic purity analysis and identity confirmation, to ensure batch-to-batch consistency and reliability. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). The compound may be sensitive to prolonged exposure to heat and moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Isomeric Purity (Z-isomer)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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