Similar names: 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-; 1,2,4-Benzenetricarboxylic acid, anhydride (7CI); 1,2,4-Benzenetricarboxylic acid, cyclic 1,2-anhydride (8CI); Trimellitic acid anhydride (6CI); 1,3-Dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid; 1,2,4-Benzenetricarboxylic acid 1,2-anhydride; 1,2,4-Benzenetricarboxylic anhydride; 1,3-Dioxo-1,3-dihydro-2-benzofuran-5-carboxylic acid; 1,3-Dioxo-1,3-dihydroisobenzofuran-5-carboxylic acid; 1,3-Dioxo-5-phthalancarboxylic acid; 4-Carboxyphthalic anhydride; Anhydrotrimellitic acid; Aradur 3380-1; Benzene-1,3,4-tricarboxylic anhydride; CE-X 23 Medium; Epon 9150; NSC 60252; TMA; TMA (anhydride); Trimellitic acid cyclic 1,2-anhydride; Trimellitic anhydride