6-Aminocaproic acid Citric acid Diethyl succinosuccinate D-(+)-Camphoric acid 1-Phenylcyclopentanecarboxylic acid Tranexamic Acid 1-Methyl-1-cyclohexanecarboxylic acid 1-Amino-1-cyclohexanecarboxylic acid Dimethyl 1,4-cyclohexanedicarboxylate 2,5-dioxo-1,4-cyclohexanedicarboxylic acid dimethyl ester