| Record No. | Name | No. of Entries |
| 676 | Salutaridinol | 1 |
| 677 | Sanguinarine | 68 |
| 678 | Sanguinarine analogue,12 | 1 |
| 679 | Sanguinarine analogue,13 | 1 |
| 680 | Sanguinarine analogue,15 | 1 |
| 681 | Sanguinarine analogue,16 | 1 |
| 682 | Sanguinarine analogue,18 | 1 |
| 683 | Sanguinarine analogue,19 | 1 |
| 684 | Sanguinarine analogue,34 | 1 |
| 685 | Sanguinarine analogue,35 | 1 |
| 686 | Sanguinarine analogue,40 | 1 |
| 687 | Sanguinarine analogue,41 | 1 |
| 688 | SANGUINARINE CHLORIDE | 1 |
| 689 | Sanguinarine nitrate | 1 |
| 690 | Scopolamine | 4 |
| 691 | SDZ ISQ 844 | 1 |
| 692 | Sinomenine | 12 |
| 693 | SOMA COMPOUND W/ CODEINE | 1 |
| 694 | Spasmofen | 1 |
| 695 | Spinosine | 2 |
| 696 | Stephanine | 1 |
| 697 | STEPHANINE METHIODIDE | 1 |
| 698 | Stepharine | 1 |
| 699 | Stepharine,6-acetyl- | 1 |
| 700 | Stepholidine | 2 |