Description

2,2-Dimethylglutaric Anhydride is a high-purity cyclic anhydride used as a versatile building block in advanced organic synthesis. Its value lies in its ability to introduce a rigid, branched aliphatic structure, making it a key intermediate for creating specialized polymers, pharmaceuticals, and fine chemicals. This product is essential for R&D chemists and production units in the pharmaceutical, agrochemical, and performance materials industries seeking to develop novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring a sterically hindered dicarboxylic acid moiety.
• Polymer & Resin Modifier: Monomer for producing polyesters, polyamides, and alkyd resins, imparting improved hardness, thermal stability, and chemical resistance.
• Curing Agent for Epoxy Resins: Used as a latent hardener to enhance the mechanical and thermal properties of epoxy systems for coatings and composites.
• Agrochemical Synthesis: Building block for creating herbicides, fungicides, and plant growth regulators with specific activity profiles.
• Liquid Crystal & OLED Materials: Key precursor in the synthesis of organic semiconductors and liquid crystal compounds for electronic displays.
• Crosslinking Agent: For specialty adhesives, sealants, and coatings requiring controlled reactivity and durable networks.
• Organic Synthesis Reagent: Used in academic and industrial research for Diels-Alder reactions, ring-opening polymerizations, and asymmetric synthesis.

Basic Information

Product Name	2,2-Dimethylglutaric Anhydride
CAS No.	2938-48-9
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	2,2-Dimethylglutaric anhydride; 2,2-Dimethylpentanedioic anhydride; Glutaric acid, 2,2-dimethyl-, anhydride; 3,3-Dimethylglutaric anhydride; DMGA; 2938-48-9; 2,2-Dimethyl-glutarsaeure-anhydrid (German); Anhydride 2,2-dimethylglutarique (French)
EINECS	220-925-8

Quality Control

Our 2,2-Dimethylglutaric Anhydride is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can lead to hydrolysis. Keep away from strong bases, strong oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	40 - 44 °C
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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