Description

3,3-Dimethylglutaric Anhydride is a versatile cyclic anhydride building block used in advanced organic synthesis. Its value lies in its bifunctional reactivity, serving as a key precursor for pharmaceuticals, agrochemicals, and high-performance polymers. This compound is essential for researchers and manufacturers in the pharmaceutical, fine chemical, and material science industries seeking to introduce the 3,3-dimethylglutaroyl moiety into complex molecules.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a sterically hindered dicarboxylic acid derivative.
• Polymer Chemistry: Used as a monomer or cross-linking agent in the production of specialty polyesters, polyamides, and epoxy resin hardeners, imparting specific thermal and mechanical properties.
• Agrochemical Synthesis: Serves as a key intermediate in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Employed in the synthesis of dyes, pigments, and complex organic ligands for catalysis.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and creating novel chemical entities.
• Cross-linking Agent: Utilized in coatings, adhesives, and composite materials to enhance durability and chemical resistance.

Basic Information

Product Name	3,3-Dimethylglutaric Anhydride
CAS No.	4160-82-1
Molecular Formula	C7H10O3
Molecular Weight	142.15 g/mol
Synonyms	3,3-Dimethylglutaric Acid Anhydride; 3,3-Dimethylpentanedioic Anhydride; Glutaric Anhydride, 3,3-dimethyl-; 3,3-Dimethyldihydro-2H-pyran-2,6(3H)-dione; NSC 66493; β,β-Dimethylglutaric Anhydride
EINECS	224-001-7

Quality Control

Our 3,3-Dimethylglutaric Anhydride is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay (HPLC), identity confirmation (IR, NMR), and impurity profiling, to ensure it meets the high standards required for synthesis and industrial applications. Certificates of Analysis (COA) are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

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.