Description

4-Amino-But-2-Enoic Acid Methyl Ester is a high-purity, versatile chemical intermediate with significant synthetic utility. Its bifunctional structure, featuring both an amino group and an unsaturated ester, makes it a valuable building block for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of β-amino acid derivatives, peptidomimetics, and other bioactive molecules with potential therapeutic applications.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents, including herbicides and fungicides, leveraging its reactive amine and alkene functionalities.
• Organic Synthesis Building Block: Serves as a Michael acceptor and a nucleophile in various carbon-carbon and carbon-heteroatom bond-forming reactions for fine chemical production.
• Polymer Chemistry: Potential monomer or co-monomer for creating functionalized polymers with tailored properties, such as polyamides or specialty coatings.
• Bioconjugation & Linker Chemistry: Utilized in the development of chemical probes, drug conjugates, and biomaterial linkers due to its amine group for coupling reactions.
• Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new synthetic methodologies and creating compound libraries.

Basic Information

Product Name	4-Amino-But-2-Enoic Acid Methyl Ester
CAS No.	141973-57-1
Molecular Formula	C5H9NO2
Molecular Weight	115.13 g/mol
Synonyms	Methyl 4-Aminobut-2-enoate; Methyl 4-Amino-2-butenoate; 2-Butenoic acid, 4-amino-, methyl ester; 4-Amino-2-butenoic acid methyl ester; (E)-Methyl 4-aminobut-2-enoate; (Z)-Methyl 4-aminobut-2-enoate; Methyl β-Aminocrotonate (related structure)
EINECS	Contact for details

Quality Control

Our production of 4-Amino-But-2-Enoic Acid Methyl Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. A Certificate of Analysis (COA) detailing specific results for purity, impurities, and physical parameters is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere if specified for optimal long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Isomeric Ratio (E/Z)	Reported on COA
Water Content (KF)	≤ 0.5%

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