Description

Maleamic Acid is a versatile bifunctional organic compound featuring both a carboxylic acid and an amide group, making it a valuable intermediate in advanced synthesis. Its primary commercial value lies in its role as a precursor for the production of maleimide derivatives, which are critical components in polymers, resins, and pharmaceutical agents. This high-purity intermediate is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking reliable building blocks for high-performance materials.

Application

• Polymer & Resin Intermediate: Key monomer for synthesizing polyimide precursors, epoxy curing agents, and other high-temperature polymers.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and various pharmacologically active maleimide derivatives.
• Agrochemical Production: Used in the manufacture of herbicides, fungicides, and plant growth regulators.
• Crosslinking Agent: Functions as a crosslinker in coatings, adhesives, and composite materials to enhance thermal and mechanical properties.
• Organic Synthesis Reagent: Employed in Diels-Alder reactions and as a precursor for N-substituted maleimides in various fine chemical processes.
• Bioconjugation Chemistry: The maleimide group, derived from maleamic acid, is widely used for site-specific labeling of proteins and antibodies.

Basic Information

Product Name	Maleamic Acid
CAS No.	557-24-4
Molecular Formula	C4H5NO3
Molecular Weight	115.09 g/mol
Synonyms	Maleamic acid; Maleic acid monoamide; 2-Butenediamic acid; Maleic acid amide; (Z)-2-Butenedioic acid monoamide; Maleinamic acid; Monoamide of maleic acid; Maleic monoamide
EINECS	209-158-3

Quality Control

Our Maleamic Acid is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for industrial and research applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available for every shipment upon request, providing full traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	~150-155 °C
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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