| Quinquenoside R1 | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Steroidal glycosides | Details |
| RA II | Organic compounds | Lignans, neolignans and related compounds | Not Available | Not Available | Details |
| RA XIII | Organic compounds | Lignans, neolignans and related compounds | Lignan glycosides | Not Available | Details |
| Rediocide A | Not Available | Not Available | Not Available | Not Available | Details |
| Rhoiptelenol | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Alcohols and polyols | Details |
| (-)-Rhyncoside B | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Rosarin | Organic compounds | Lipids and lipid-like molecules | Fatty Acyls | Fatty acyl glycosides | Details |
| Rossicaside B | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Rossicaside E | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| (-)-Rotundifolioside H | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Rotundifolioside J | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Rotundioside F | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Rotundioside G | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (-)-Rotundioside K | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (-)-Rotundioside S | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Rotundioside U | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (+)-Rubescensin P | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Hydroxysteroids | Details |
| Rubiadin primeveroside | Organic compounds | Benzenoids | Anthracenes | Anthraquinones | Details |
| Rubianol g | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Rubianoside I | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Rubianoside II | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Rubiawallin C | Organic compounds | Benzenoids | Anthracenes | Anthracenecarboxylic acids and derivatives | Details |
| Salvifaricin | Organic compounds | Organoheterocyclic compounds | Furofurans | Not Available | Details |
| Sandaracopimarinal | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| (-)-Sapimukoside E | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| (-)-Sapimukoside F | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Sarmentol D | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Sesquiterpenoids | Details |
| Scillascillin | Organic compounds | Phenylpropanoids and polyketides | Isoflavonoids | Isoflavans | Details |
| Scopadulcic acid C | Organic compounds | Benzenoids | Benzene and substituted derivatives | Benzoic acids and derivatives | Details |
| Scrophuloside A | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
