| No. | Product Name | CAS No. |
| 201 | L-Proline benzyl ester hydrochloride | 16652-71-4 |
| 202 | L-Serine Ethyl Ester Hydrochloride | 26348-61-8 |
| 203 | L-Serine Methyl Ester Hydrochloride | 5680-80-8 |
| 204 | L-Tyrosine Ethyl ester Hydrochloride | 4089-7-7 |
| 205 | L-Tyrosine Methyl ester Hydrochloride | 3417-91-2 |
| 206 | L-Tyrosine benzyl ester p-toluenesulfonate | 53587-11-4 |
| 207 | L-Tryptophan Eehyl Ester Hydrochloride | 2899-28-7 |
| 208 | L-Tryptophan Methyl ester Hydrochloride | 7524-52-9 |
| 209 | L-Valine Ethyl ester Hydrochloride | 17609-47-1 |
| 210 | L-Valine Methyl ester Hydrochloride | 6306-52-1 |
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