1.1-Cbz-4-Piperidone,Cas#19099-93-5

2.N-(tert-Butoxycarbonyl)-4-piperidone,Cas#79099-07-3

3.1-Boc-piperazine,Cas#143238-38-4

4.1-Phenylpiperazine,Cas#92-54-6

5.1-tert-Butoxycarbonyl-4-piperidinecarboxaldehyde,Cas#137076-22-3

6.4-Amino-1-Boc-piperidine,Cas#87120-72-7

7.4,4-Piperidinediol hydrochloride,Cas#40064-34-4

8.4-Chloro-N-methylpiperidine,Cas#5570-77-4

9.2-Pyridinecarboxylic acid ,Cas#98-98-6

10.3-Pyridinecarboxylic acid,Cas#59-67-6

11.2-Pyridinecarboxaldehyde,Cas#1121-60-4

12.3-Pyridinecarboxaldehyde,Cas#500-22-1

13.4-Pyridinecarboxaldehyde,Cas#872-85-5

14.2-Picolinic acid methyl ester, Cas#2459-07-6

15.2-Pyridinecarboxylic acid,ethyl ester,Cas#2524-52-9

16.4-Nitrophenylethylamine hydrobromide,Cas#69447-84-3

17.Loratadine,Cas#79794-75-5

18.5,6-Dimethoxy-1-indanone,Cas#2107-69-9

19.Donepezil hydrochloride,Cas#120011-70-3

20.Clopidogrel sulfate,   Cas#120202-66-6

21.Tetracaine hydrochloride,Cas#136-47-0

1. Methyl piperidine-3-carboxylate, Cas#50585-89-2

2.4-Piperidinopiperidine,Cas#2971-79-1

3.Ethyl 1-methyl-2-piperidinecarboxylate, Cas#    30727-18-5

4.Ethyl 1-methyl-3-piperidinecarboxylate,Cas#1690-72-8

5.Methyl N-Boc-piperidine-3-carboxylate,Cas#148763-41-1

6.N-Boc-Piperidine-4-carboxylic acid methyl ester,Cas#124443-68-1

7.Ethyl piperidine-2-carboxylate hydrochloride,Cas#77034-33-4

8.Ethyl piperidine-3-carboxylate,Cas#5006-62-2

9.Ethyl piperidine-4-carboxylate,Cas#1126-09-6

10.Ethyl 1-methyl-3-piperidinecarboxylate,Cas#5166-67-6

11.Ethyl 1-methyl-4-piperidinecarboxylate,Cas#24252-37-7

12.N-Boc-piperidine-2-carboxylate, Cas#362703-48-8

13.N-Boc-piperidine-3-carboxylate,      Cas#130250-54-3

14.Ethyl N-Boc-piperidine-4-carboxylate,Cas#142851-03-4

15.Ethyl (3R)-piperidine-3-carboxylate,Cas#25137-01-3

16.Ethyl (3S)-piperidine-3-carboxylate,Cas#37675-18-6

17.Ethyl (R)-nipecotate L-tartarate, Cas#167392-57-6

18.Ethyl (S)-nipecotate L-tartrate,Cas#83602-38-4

19.N-Benzyl-4-piperidone,Cas#3612-20-2

20.Piperidine-4-carboxamide,Cas#39546-32-2