Description

Trimethyladipic Anhydride is a specialized cyclic anhydride derivative of adipic acid, featuring three methyl substituents. This structural modification imparts unique reactivity and physical properties, making it a valuable intermediate for synthesizing high-performance polymers and fine chemicals. It is particularly sought after by manufacturers in the polymer, resin, and specialty chemical industries for applications requiring enhanced thermal stability, solubility, or specific functional groups.

Application

• Polymer Intermediate: A key monomer for the synthesis of polyimides, polyamides, and alkyd resins, contributing to improved thermal and mechanical properties.
• Epoxy Curing Agent: Used as a hardener in epoxy resin formulations, offering controlled reactivity and potential for tailored crosslink density.
• Plasticizer Production: Serves as a precursor for manufacturing specialized ester-based plasticizers for polymers like PVC.
• Fine Chemical Synthesis: An important building block in organic synthesis for pharmaceuticals, agrochemicals, and liquid crystal materials.
• Coating Resins: Incorporated into high-performance coating systems to enhance durability, gloss, and chemical resistance.
• Adhesive Formulations: Used in the production of hot-melt and reactive adhesives requiring specific rheological and bonding characteristics.

Basic Information

Product Name	Trimethyladipic Anhydride
CAS No.	29011-65-2
Molecular Formula	C9H12O3
Molecular Weight	168.19 g/mol
Synonyms	1,3,3-Trimethyladipic Anhydride; 3,3,5-Trimethyladipic Anhydride; 3,3,5-Trimethyl-1,2-cyclohexanedicarboxylic Anhydride; 3,3,5-Trimethylhexahydrophthalic Anhydride; TMAA; Trimethylhexahydrophthalic Anhydride (isomeric mixture); 4-Methyl-4-(2-oxopropyl)pentanedioic Anhydride
EINECS	Contact for details

Quality Control

Our Trimethyladipic Anhydride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, identity, and performance. We provide detailed Certificates of Analysis (COA) that document key parameters such as assay, moisture content, and impurity profile, ensuring full traceability and compliance with your technical requirements.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Contact for details

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