| Label | Id | |
|---|---|---|
| Ala-Ser-Gly | 158495 | |
| Ala-Ser-His | 158497 | |
| Ala-Ser-Ile | 158499 | |
| Ala-Thr-Pro | 158549 | |
| Ala-Val-Cys | 158649 | |
| Alisporivir | 149837 | |
| Allopatuletin | 196349 | |
| Alloxanthin/Tetradehydrozeaxanthin/(Cynthiaxanthin)/(Pectenoxanthin) | 181749 | |
| Alpinetin | 229049 | |
| Ambanol | 184929 | |
| Amethysamide | 225495 | |
| Ampelopyrone | 214978 | |
| Ampullosporin | 211249 | |
| Anecortave | 177649 | |
| Anethofuran | 171949 |