Synonyms: 1,2,4-Benzenetricarboxylicacid, 1,2-anhydride, methyl ester (7CI); 1,2,4-Benzenetricarboxylic acid,cyclic 1,2-anhydride, methyl ester (8CI); 4-Methoxycarbonylphthalic anhydride;Trimellitic acid anhydride 4-monomethyl ester; Trimellitic anhydride methylester