1,2-cyclohexanedicarboxylic acid, mono[2-(ethylamino)ethyl] ester 2-{[2-(ethylamino)ethoxy]carbonyl}cyclohexanecarboxylic acid InChI=1/C12H21NO4/c1-2-13-7-8-17-12(16)10-6-4-3-5-9(10)11(14)15/h9-10,13H,2-8H2,1H3,(H,14,15