Description

Maleimide CAS NO 541-59-3 is a versatile, high-purity organic compound characterized by its reactive double bond adjacent to a carbonyl group, making it a crucial building block for Michael addition and Diels-Alder reactions. This compound is essential for creating advanced polymers, pharmaceuticals, and specialty chemicals with enhanced thermal and mechanical properties. It is primarily sought after by R&D laboratories, polymer chemists, and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors for synthesizing cross-linking agents, adhesives, and bioactive molecules.

Application

• Polymer Science & Material Engineering: A key monomer for synthesizing polyimides, polyamides, and other high-performance polymers used in electronics, aerospace, and automotive industries for their thermal stability.
• Pharmaceutical Intermediates: Serves as a critical precursor in the synthesis of various active pharmaceutical ingredients (APIs) and drug conjugates, particularly in cancer therapeutics.
• Bioconjugation & Protein Labeling: Used to modify peptides, proteins, and antibodies due to its selective reactivity with thiol groups, enabling the creation of diagnostic tools and targeted drug delivery systems.
• Cross-linking Agent: Employed in the production of coatings, adhesives, and resins to improve durability, chemical resistance, and mechanical strength.
• Agrochemical Synthesis: Acts as an intermediate in the manufacture of certain pesticides and herbicides.
• Research & Development: A fundamental reagent in organic synthesis for exploring new chemical entities and reaction pathways in academic and industrial settings.

Basic Information

Product Name	Maleimide
CAS No.	541-59-3
Molecular Formula	C4H3NO2
Molecular Weight	97.07 g/mol
Synonyms	Maleimide; 1H-Pyrrole-2,5-dione; 2,5-Pyrroledione; Maleic imide; Maleinimide; NSC 1301; CCRIS 1381; BRN 0111985; AI3-00521
EINECS	208-787-4

Quality Control

Our Maleimide is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification (IR), assay (HPLC), and impurity profiling, to meet exacting customer requirements. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	91°C - 95°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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