Trimellitic Anhydride (TMA) is an aromatic carboxylic acid anhydride used as an industrial intermediate in resins, coatings, plasticizers, polymers, and specialty chemical manufacturing. It is commonly associated with trimellitate esters, polyester and alkyd resin systems, epoxy-related chemistries, and PVC-focused applications where TMA-derived materials are specified by the customer’s formulation.
Chemical Name: Trimellitic Anhydride
CAS Number: 552-30-7
Chemical Family: Aromatic carboxylic acid anhydride
Appearance: Colorless to white solid, often supplied as crystals, flakes, or pastilles
◦ TMA
◦ 1,2,4-Benzenetricarboxylic anhydride
◦ 4-Carboxyphthalic anhydride
Trimellitic Anhydride (TMA) is commonly associated with:
◦ TMA-based plasticizers and trimellitate esters
◦ PVC and polymer applications
◦ Polyester and alkyd resins
◦ Coatings and surface-treatment formulations
◦ Epoxy resin intermediates and hardeners
◦ Dyes and specialty chemical intermediates
Application requirements vary by process and formulation.
The Chemical Company supplies Trimellitic Anhydride (TMA) to customers across a variety of industrial markets.
Packaging options, inventory status, and logistics support may vary by region and application.
Contact The Chemical Company for current availability, pricing, samples, specifications, SDS documentation, regulatory information, and purchasing assistance.
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