1,2,4-Benzenetricarboxylic acid 1,2-anhydride 1,2,4-Benzenetricarboxylic acid anhydride 1,2,4-Benzenetricarboxylic acid, cyclic 1,2-anhydride 1,2,4-Benzenetricarboxylic anhydride 1,3-Dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid 1,3-Dioxo-5-phthalancarboxylic acid 4-Carboxyphthalic anhydride 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo- 5-Phthalanacarboxylic acid, 1,3-dioxo- 552-30-7 Anhydrotrimellic acid Anhydrotrimellitic acid Diphenylmethane-4,4'-diisocyanate-trimellic anhydride-ethomid ht polymer NCI-C56633 NSC60252 TMA TMAN Trimellic acid 1,2-anhydride Trimellic acid anhydride Trimellitic acid 1,2-anhydride Trimellitic acid anhydride Trimellitic acid, cyclic 1,2-anhydride WLN: T56 BVOVJ GVQ