| Labuanine A | Organic compounds | Organoheterocyclic compounds | Quinolines and derivatives | Benzoquinolines | Details |
| Laevisine A | Not Available | Not Available | Not Available | Not Available | Details |
| Lanyuamide I | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbonyl compounds | Details |
| Lastourvilline | Organic compounds | Alkaloids and derivatives | Aporphines | Not Available | Details |
| Leroyine | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| Leucamide A | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Lissoclinamide 5 | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Lissoclinidine | Organic compounds | Organoheterocyclic compounds | Quinolines and derivatives | Benzoquinolines | Details |
| Litebamine | Organic compounds | Benzenoids | Phenanthrenes and derivatives | Phenanthrols | Details |
| Lochneram | Not Available | Not Available | Not Available | Not Available | Details |
| Lucidine A | Organic compounds | Organoheterocyclic compounds | Quinolidines | Not Available | Details |
| Chromopyrrolic acid | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Indoles | Details |
| 11-hydroxy-5,9,14-trimethyl-15-oxotetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadecane-5-carboxylic acid | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Diterpenoids | Details |
| 2,11,18,20-tetrahydroxy-7-isopropyl-4,8,16-trimethyl-6,23-dioxa-3,12,25-triazabicyclo[20.2.1]pentacosa-1(24),2,9,11,14,16,22(25)-heptaen-5-one | Organic compounds | Phenylpropanoids and polyketides | Macrolide lactams | Not Available | Details |
| Madangamine D | Organic compounds | Organoheterocyclic compounds | Diazanaphthalenes | Naphthyridines | Details |
| Makaluvamine K | Organic compounds | Organoheterocyclic compounds | Quinolines and derivatives | Pyrroloquinolines | Details |
| 7-[(8-hydroxy-3,7-dimethylocta-2,6-dien-1-yl)oxy]-6-methoxychromen-2-one | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Terpene lactones | Details |
| Malagashanine | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Carbazoles | Details |
| Malasseziazole A | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Carbazoles | Details |
| Merenderine N-oxide | Organic compounds | Alkaloids and derivatives | Homoaporphines | Not Available | Details |
| Methoxystemofoline | Not Available | Not Available | Not Available | Not Available | Details |
| Microginin 99B | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Microviridin B | Organic compounds | Organic acids and derivatives | Peptidomimetics | Hybrid peptides | Details |
| Mukanadin A | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Murrayamine D | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Carbazoles | Details |
| 4-[(3as,3br,5ar,7r,9as,9bs,11ar)-3a-hydroxy-9a,11a-dimethyl-7-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,3bh,4h,5h,5ah,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-1-yl]-5h-furan-2-one | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Steroidal glycosides | Details |
| Murrayamine I | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Carbazoles | Details |
| Murrayamine P | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Carbazoles | Details |
| Myrmicarin 430A | Organic compounds | Lipids and lipid-like molecules | Prenol lipids | Monoterpenoids | Details |
| Naamidine G | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
