Description

3,3-Tetramethyleneglutaric Anhydride is a versatile cyclic anhydride monomer used in the synthesis of high-performance polymers and specialty chemicals. This compound is valued for its ability to introduce specific structural motifs and functional groups, enabling the creation of materials with tailored thermal and mechanical properties. It is a critical intermediate for research and production in advanced material science, polymer chemistry, and pharmaceutical development.

Application

• Polymer Synthesis: Key monomer for producing polyimides, polyamides, and other high-temperature engineering plastics.
• Epoxy Resin Curing Agent: Acts as a hardener to enhance the thermal stability and chemical resistance of epoxy systems.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Crosslinking Agent: Imparts crosslinks in coatings, adhesives, and elastomers to improve durability.
• Organic Synthesis Building Block: Serves as a precursor for diacids, diesters, and other derivatives in fine chemical production.
• Surface Modification: Used to functionalize surfaces or materials to alter their adhesion and compatibility properties.

Basic Information

Product Name	3,3-Tetramethyleneglutaric Anhydride
CAS No.	5662-95-3
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	3,3-Tetramethylglutaric Anhydride; 3,3-Pentamethyleneglutaric Anhydride; 2,6-Dioxaspiro[3.3]heptane-1,7-dione; 1,3-Cyclopentanediacetic Anhydride; 3,3-Pentamethylenediglutaric Anhydride; TMGA; Spiroglutaric Anhydride
EINECS	227-099-5

Quality Control

Our 3,3-Tetramethyleneglutaric Anhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, 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). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent hydrolysis.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	97 - 102 °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.