| (-)-Licamichauxiioic acid B | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbonyl compounds | Details |
| (+)-Macaflavanone F | Organic compounds | Phenylpropanoids and polyketides | Flavonoids | Flavans | Details |
| (-)-Maesasaponin II | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Maesasaponin V2 | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Magnolianone | Organic compounds | Benzenoids | Phenols | Methoxyphenols | Details |
| Makaluvamine E | Organic compounds | Organoheterocyclic compounds | Quinolines and derivatives | Pyrroloquinolines | Details |
| Mandarone A | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| Marchantin O | Organic compounds | Lignans, neolignans and related compounds | Not Available | Not Available | Details |
| Medinillin B | Organic compounds | Phenylpropanoids and polyketides | Tannins | Hydrolyzable tannins | Details |
| Megathyrin A | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| (-)-Meliacarpinin B | Organic compounds | Organoheterocyclic compounds | Naphthofurans | Not Available | Details |
| Melinonine F | Not Available | Not Available | Not Available | Not Available | Details |
| Melitric acid A | Organic compounds | Benzenoids | Benzene and substituted derivatives | Phenylpyruvic acid derivatives | Details |
| Mesembryanthin | Organic compounds | Phenylpropanoids and polyketides | Flavonoids | Flavonoid glycosides | Details |
| Methyl homosecodaphniphyllate | Organic compounds | Alkaloids and derivatives | Daphniphylline-type alkaloids | Not Available | Details |
| Methyl melitrate A | Organic compounds | Benzenoids | Benzene and substituted derivatives | Phenylpyruvic acid derivatives | Details |
| (-)-Mirabamide C | Organic compounds | Organic acids and derivatives | Peptidomimetics | Depsipeptides | Details |
| N-Methyl-2-pyrrolidone | Organic compounds | Organoheterocyclic compounds | Pyrrolidines | N-alkylpyrrolidines | Details |
| (+)-Norpredicentrine | Organic compounds | Alkaloids and derivatives | Aporphines | Not Available | Details |
| (-)-Norsecurinine | Organic compounds | Organoheterocyclic compounds | Pyrrolizidines | Not Available | Details |
| Nuttingin C | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| Orisuaveoline A | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Pyridoindoles | Details |
| Palauolol | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene lactones | Details |
| Penasulfate A | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| (+)-Perennisoside V | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (+)-Perennisoside VII | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| (-)-Pescaprein I | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| (-)-Pescaprein XVII | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbohydrates and carbohydrate conjugates | Details |
| Phyloside B | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene glycosides | Details |
| Physalin II | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Physalins and derivatives | Details |
