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N,N-Dimethylcyclohexylamine 2,5-PYRIDINEDICARBOXYLIC ACID Bis(cyclohexanone)oxaldihydrazone Cyclohexanone Dicyclohexylamine CIS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE cis-1,3-cyclohexanedicarboxylic acid CIS-1,4-DIMETHYL CYCLOHEXANEDICARBOXYLATE Dimethyl 1,4-cyclohexanedicarboxylate Bicyclo[2.2.2]Octane-1,4-Dicarboxylic Acid