Description

2,3-Dimethylmaleic Anhydride is a versatile, high-purity cyclic anhydride derivative valued for its reactivity as a dienophile and bifunctional monomer. This compound is essential for creating specialized polymers, fine chemicals, and advanced pharmaceutical intermediates. It is primarily sought by R&D laboratories and industrial manufacturers in the polymer, agrochemical, and pharmaceutical sectors for synthesis and formulation work.

Application

• Polymer Chemistry: Key monomer for the synthesis of specialty polyimides, polyamides, and alkyd resins, imparting specific thermal and mechanical properties.
• Organic Synthesis: Acts as a versatile building block and protecting group reagent in multi-step synthesis for pharmaceuticals and agrochemicals.
• Diels-Alder Reactions: Serves as an efficient dienophile for constructing complex, functionalized cyclic structures in research and development.
• Crosslinking Agent: Used in coatings, adhesives, and epoxy resin systems to enhance durability and chemical resistance.
• Pharmaceutical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs.
• Agrochemical Synthesis: Intermediate in the production of advanced pesticides and herbicides.

Basic Information

Product Name	2,3-Dimethylmaleic Anhydride
CAS No.	766-39-2
Molecular Formula	C6H6O3
Molecular Weight	126.11 g/mol
Synonyms	2,3-Dimethyl-2-butenedioic Anhydride; 2,3-Dimethylmaleic Anhydride; 2,3-Dimethylmaleic Acid Anhydride; 2,3-Dimethyl-2,5-furandione; 2,3-Dimethylfuran-2,5-dione; 2,3-Dimethyl-2-butenedioic Acid Anhydride; 2,3-Dimethyl-2,5-dihydrofuran-2,5-dione
EINECS	212-168-2

Quality Control

Our 2,3-Dimethylmaleic Anhydride is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee compliance with your research and production specifications.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can compromise product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	94 - 98 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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