Description

(E)-4-Oxo-Pent-2-Enoic Acid CAS NO 2833-21-8 is a high-purity, unsaturated keto acid that serves as a versatile and critical building block in advanced organic synthesis. Its unique α,β-unsaturated carbonyl structure makes it a valuable electrophile and precursor for constructing complex heterocyclic and pharmaceutical intermediates. This compound is essential for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those containing pyridine, pyrrole, or other nitrogen-containing heterocycles.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators, leveraging its reactivity for creating complex molecular architectures.
• Fine Chemical Building Block: Serves as a starting material for synthesizing flavors, fragrances, and advanced polymer monomers.
• Academic & Research Chemistry: A valuable reagent for methodological development in organic synthesis, including studies on Michael additions, cyclization reactions, and asymmetric catalysis.
• Material Science: Potential precursor for functionalized organic materials and metal-organic frameworks (MOFs) due to its chelating carbonyl and carboxylic acid groups.

Basic Information

Product Name	(E)-4-Oxo-Pent-2-Enoic Acid
CAS No.	2833-21-8
Molecular Formula	C5H6O3
Molecular Weight	114.10 g/mol
Synonyms	(E)-4-Oxopent-2-enoic Acid; 4-Oxo-2-pentenoic Acid; 3-Acetylacrylic Acid; 3-Acetyl-2-propenoic Acid; 4-Oxo-2-pentenoic Acid (E)-; trans-4-Oxopent-2-enoic Acid; 3-Acryloylacetic Acid; 2-Pentenoic acid, 4-oxo-, (E)-
EINECS	220-603-9

Quality Control

Our (E)-4-Oxo-Pent-2-Enoic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes results from HPLC, NMR, and other relevant spectroscopic methods. Our quality commitment ensures the material meets the stringent requirements for research and cGMP-grade synthesis applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). The compound may be hygroscopic; keep the container tightly sealed under an inert atmosphere if specified. Keep away from strong bases, oxidizing agents, and reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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