1 2 3-benzenetricarboxylic acid trimethyl ester July 8, 2019 16 32 64 128 1 2 4-benzenetricarboxylic acid 1 2-dimethyl ester 1 2 3-benzenetricarboxylic acid hydrate Benzene-1 2 3-tricarboxylic acid 1 2 3-benzenetricarboxylic acid