Description

2,3-Dichloro-n-Methylmaleimide is a versatile and highly reactive heterocyclic building block. Its core value lies in its ability to act as a potent dienophile in Diels-Alder reactions and as an electrophilic Michael acceptor, enabling the synthesis of complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it serves as a key intermediate for developing active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key synthon for the development of novel drug candidates, particularly in oncology and anti-inflammatory research.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, leveraging its reactive sites for structural diversification.
• Polymer Chemistry: Serves as a cross-linking agent or monomer in the synthesis of specialty polymers with enhanced thermal or chemical resistance.
• Organic Synthesis Building Block: A crucial reagent for [4+2] cycloaddition (Diels-Alder) reactions to construct complex carbocyclic and heterocyclic systems.
• Bioconjugation Chemistry: Utilized for modifying proteins, peptides, or other biomolecules due to its reactivity with nucleophilic amino acid residues.
• Material Science Research: Investigated for creating organic electronic materials or as a component in photoactive compounds.

Basic Information

Product Name	2,3-Dichloro-n-Methylmaleimide
CAS No.	1123-61-1
Molecular Formula	C5H3Cl2NO2
Molecular Weight	179.99 g/mol
Synonyms	2,3-Dichloro-1-methyl-1H-pyrrole-2,5-dione; N-Methyl-2,3-dichloromaleimide; 2,3-Dichloro-N-methylmaleimide; 1-Methyl-2,3-dichloromaleimide; 2,3-Dichloro-1-methylmaleimide; 2,3-Dichloro-N-methyl-1H-pyrrole-2,5-dione; Dichloro-N-methylmaleimide
EINECS	214-371-6

Quality Control

Our 2,3-Dichloro-n-Methylmaleimide is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.