| (+)-Kadsuracoccinic acid B | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Kakkalide | Organic compounds | Phenylpropanoids and polyketides | Isoflavonoids | Isoflavonoid O-glycosides | Details |
| Keenamide A | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| (+)-Kinabalurine G | Organic compounds | Organoheterocyclic compounds | Piperidines | Not Available | Details |
| (-)-Kopsinidine A | Not Available | Not Available | Not Available | Not Available | Details |
| Ladyginoside E | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Liouvilloside A2 | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Lobatoside J | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Longikaurin C | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| (-)-Lophodiol B | Organic compounds | Phenylpropanoids and polyketides | Macrolides and analogues | Not Available | Details |
| Lophotoxin | Organic compounds | Phenylpropanoids and polyketides | Macrolides and analogues | Not Available | Details |
| Loxothyrin A | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene lactones | Details |
| Luperoside J | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (+)-Macaflavanone E | Organic compounds | Phenylpropanoids and polyketides | Flavonoids | Flavans | Details |
| (-)-Maesasaponin VI3 | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Malonganenone B | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| (+)-Mandarone C | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| Manoalide | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene lactones | Details |
| Maoecrystal I | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| Meliatoxin B1 | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Meliavosin | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Pregnane steroids | Details |
| Melliferone | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| Mexicanolide | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Triterpenoids | Details |
| (+)-Micrandilactone B | Organic compounds | Organoheterocyclic compounds | Furofurans | Not Available | Details |
| (-)-Mirabamide A | Organic compounds | Organic acids and derivatives | Peptidomimetics | Depsipeptides | Details |
| (-)-Mirabamide B | Organic compounds | Organic acids and derivatives | Peptidomimetics | Depsipeptides | Details |
| Momordin IId | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (-)-Monocillin III | Organic compounds | Benzenoids | Benzene and substituted derivatives | Benzoic acids and derivatives | Details |
| Motuporin | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| (+)-Myrtucommulone A | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbonyl compounds | Details |
