Methyl cyclopropanecarboxylate2868-37-331 % similar 1,4-Dimethyl trans-1,4-cyclohexanedicarboxylate3399-22-231 % similar Dimethyl 1,4-cyclohexanedicarboxylate94-60-031 % similar Ethyl cyclohexanecarboxylate3289-28-930 % similar