2-哌啶甲酸甲酯（鹽酸鹽）哌啶-2-羧酸甲酯Methyl　Piperidine-2-carboxylate41994-45-0淺黃色液體＞＝99 3-哌啶甲酸甲酯（鹽酸鹽）哌啶-3-羧酸甲酯Methyl　Piperidine-3-carboxylate50585-89-2淺黃色液體＞＝99 4-哌啶甲酸甲酯（鹽酸鹽）哌啶-4-羧酸甲酯Methyl　Piperidine-4-carboxylate2971-79-1淺黃色液體＞＝99 1-甲基-2-哌啶甲酸甲酯Methyl　1-methylPiperidine-2-carboxylateEthyl1-methyl-2-piperidinecarboxylate30727-18-5淺黃色液體＞＝98 1-甲基-3-哌啶甲酸甲酯Methyl　1-methylPiperidine-3-carboxylateEthyl1-methyl-3-piperidinecarboxylate1690-72-8淺黃色液體＞＝98 N-Boc-3-哌啶甲酸甲酯　N-Boc-Piperidine-3-carboxylate148763-41-1 淺黃色粘稠液體＞＝98 N-Boc-4-哌啶甲酸甲酯　N-Boc-Piperidine-4-carboxylate1-叔丁氧羰基-4-哌啶甲酸甲酯1-N-BOC-4-piperidinecarboxylicacidmethylester124443-68-1淺黃色粘稠液體＞＝98