| D-Tartaric acid | 147-71-7 |
| L-(+)-Tartaric acid | 526-83-0 |
| L(+)-Tartaric acid | 87-69-4 |
| DL-Tartaric acid | 133-37-9 |
| 4-Piperidone Hydrochlorride | 40064-34-4 |
| 1-Boc-3-Piperidinone | 98977-36-7 |
| 1-N-Boc-4-phenylaminopiperidine | 125541-22-2 |
| tert-butyl 4-(4-bromoanilino)piperidine-1-carboxylate | 443998-65-0 |
| 4,4-Piperidinediol hydrochloride | 40064-34-4 |