Description

n-Ethylmaleamic Acid is a versatile maleamic acid derivative characterized by its reactive double bond and amide functionality. This compound serves as a valuable chemical intermediate and building block in advanced organic synthesis, enabling the creation of specialized polymers and functional materials. It is primarily sought by pharmaceutical researchers and fine chemical manufacturers for developing active ingredients and high-performance additives.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Monomer or cross-linking agent for producing specialty polyimides, polyamides, and other high-performance polymers.
• Bioconjugation & Protein Modification: Used to introduce maleimide functionality for site-specific labeling of proteins and antibodies.
• Organic Synthesis: Versatile precursor for Diels-Alder reactions and Michael additions to create complex molecular architectures.
• Material Science: Component in the development of advanced coatings, adhesives, and composites with tailored properties.
• Research & Development: Essential reagent in academic and industrial R&D labs for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	n-Ethylmaleamic Acid
CAS No.	4166-67-0
Molecular Formula	C6H9NO3
Molecular Weight	143.14 g/mol
Synonyms	N-Ethylmaleamic Acid; 2-(Ethylamino)-2-butenedioic Acid; Maleamic Acid, N-Ethyl-; (2Z)-4-(Ethylamino)-4-oxo-2-butenoic Acid; Ethylmaleamic Acid; N-Ethylmaleamic acid; 4166-67-0; Butenedioic acid, 2-(ethylamino)-
EINECS	224-041-9

Quality Control

Our n-Ethylmaleamic Acid is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of pharmaceutical and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider inert atmosphere conditions to preserve stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	< 10 ppm
Residual Solvents	Complies with ICH guidelines

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