1(Or 2)-(2-ethylhexyl) dihydrogen benzene-1,2,4-tricarboxylate 1,2,4-Benzenetricarboxylic acid, 1(or 2)-(2-ethylhexyl) ester 68735-92-2 EINECS 272-110-9 Trimellitic anhydride, mono-2-ethylhexyl ester