Moniliformin is a mycotoxin and potential dehydrogenase inhibitor found in Fusarium. It decreases collage synthesis, suppresses endocytosis, and may damage myocardial tissue.

Monensin sodium is an ionophore and inhibitor of autophagy commercially used in livestock feed. It inhibits autophagy, interfering with the fusion of the autophagosome and the lysosome.

Mivacurium chloride is a non-depolarizing NMJ blocker and nAChR antagonist used as an anesthetic. It inhibits skeletal muscle contractility and prevents atrial fibrillation.

Miconazole nitrate is an 14-α demethylase inhibitor and potential glucocorticoid receptor antagonist that inhibits ergosterol synthesis and fungal cell wall formation. It is used to treat fungal infections and is especially active against Candida. It also decreases expression of HIF-1α and VEGF in breast cancer and glioma cells.

Methysticin is found in Piper methysticum (kava plant). It inhibits activation of NF-χB in lung adenocarcinoma tissue, activates Nrf2 in neurons and astroglia, decreases peak amplitude of voltage-gated Na+ channels in hippocampal neurons, and suppresses growth of Fusarium, Trichoderma, and Colletotrichum.

7-Methyl-6-mercaptopurine is a 6-mercaptopurine derivative and inhibitor of PRPP amidotransferase used to treat autoimmune diseases, leukemia,s and lymphomas. It inhibits IMP metabolism, preventing the synthesis of purines, DNA and RNA.

NSC-226572, also known as Alanine, 3-(methylsulfinyl)-, L-, pyrolyzate, S-methyl-L-cysteine-S-oxide; S-Methylcysteine sulfoxide, is a synthetic analog of alliin found in cruciferous vegetables including cabbage, turnip, cauliflower, and kale. NSC-226572 is converted through alliinase activity into a volatile thiosulfinate.

S-Methylcysteine is an antioxidant found in Brassicaceae family plants. It decreases oxidative stress and inhibits oil drop formation in white pre-adipose tissue.

L-alpha-Methylbenzyl isothiocyanate is an antioxidant that induces phase II enzyme activity. It is also used as a chiral agent.

D-alpha-Methylbenzyl isothiocyanate is an antioxidant that induces phase II enzyme activity. It is also used as a chiral agent.

DL-alpha-Methylbenzyl isothiocyanate is an antioxidant that induces phase II enzyme activity.

S-Methoprene is a juvenile insect growth hormone analog that prohibits the ability of the insect to change from pupae to adult. It is used to control mosquito populations. It alters Ca 2+ signaling and redox activity of cytochrome oxidase and induces male sex differentiation.

Melitracen HCl ia potential dopamine D1/2 receptor antagonist used to treat depression. It is often co-administered with flupenthixol as a treatment for trigeminal neuralgia. It does not effect cardiovascular function.

Meglumine is an amino sugar and sorbitol derivative used as a bulking agent in the formulation of pharmaceutical drugs.

Manzamine A is a vacuolar ATPase uncoupler and GSK-3 inhibitor found in marine sponges. It inhibits autophagy and tumor growth in cancer models, suppresses foam cell formation in macrophages, prevents growth of gram positive and gram negative bacteria, and decreases tau hyperphosphorylation.

Lupinine is an AChE and BChE inhibitor and potential CD69 activator found in species of Loranthus, Calia, and Lupinus. It may also inhibit heparin.

Gamolenic acid is an omega-6 fatty acid PPAR agonist found in vegetable oils. It is a precursor to prostaglandin E1 and eicsapentaenoic acid. It regulates insuilin secretion, inhibits diabetes mellitus-induced albuminuria, and induces apoptosis in leukemia cells.

Lincomycin hydrochloride is a peptidyl transferase and protein translation inhibitor used to treat bacterial infections. It also inhibits growth of plasmodium.

Limonin glucoside is found in citrus fruits. It induces apoptosis in colon adenocarcinoma cells, inhibits expression of HIV-1 and HTLV-1 in infected cells, and exhibits larvicidal activity against species of Aedes.

(d)-Limonene is a commercial flavorant, odorant, cleaning solvent, and insecticide found in the rind of various citrus plants. It displays a wide range of activities, including cell cycle arrest and apoptosis in gastric carcinoma cells, inducing phase II enzyme expression to limit oxidative damage, and suppressing cytokine production by CD4+ and CD8+ T cells.

Lactacystin is a proteasome inhibitor found in Streptomyces. It increases the Bax/Bcl-2 ratio and inhibits proliferation of glioma cells, inhibits growth and migration of smooth muscle cells, and suppresses infiltration of neutrophils and decreases levels of ICAM-1 in liver injury models.

Kanamycin B is an inhibitor of protein translation and mammalian RNA splicing. It inhibits growth of gram negative bacteria, prevents formulation of the initiation complex, and decreases action potential amplitude in cardiac pacemaker cells.

Kainic acid is an excitatory amino acid and AMPA and kainate receptor agonist found in seaweed. It increases glutamate release and stimulates Na channels, inducing seizures.

Kahweol palmitate is a semi-synthetic derivative of kahweol, a natural product found in coffee beans. It exhibits a wide variety of biological activities, including inhibiting RANKL-induced osteoclast generation, inducing cell cycle arrest and apoptosis in oral squamous cell carcinoma cells, preventing aflatoxin B1-induced DNA adduct formation, and suppressing H2O2-induced DNA damage and oxidative stress.

Kahweol oleate is emi-syntetic derivative of kahweol, a natural product found in coffee beans. It exhibits a wide variety of biological activities, including inhibiting RANKL-induced osteoclast generation, inducing cell cycle arrest and apoptosis in oral squamous cell carcinoma cells, preventing aflatoxin B1 induced DNA adduct formation, and suppressing H2O2-induced DNA damage and oxidative stress.

Kahweol Eicosanate is a semi-syntetic derivative of kahweol, a natural product found in coffee beans. It exhibits a wide variety of biological activities, including inhibiting RANKL-induced osteoclast generation, inducing cell cycle arrest and apoptosis in oral squamous cell carcinoma cells, preventing aflatoxin B1 induced DNA adduct formation, and suppressing H2O2-induced DNA damage and oxidative stress.

Kahweol Acetate is a semi-synthetic derivative of kahweol, a natural product found in coffee beans. It exhibits a wide variety of biological activities, including inhibiting RANKL-induced osteoclast generation, inducing cell cycle arrest and apoptosis in oral squamous cell carcinoma cells, preventing aflatoxin B1 induced DNA adduct formation, and suppressing H2O2-induced DNA damage and oxidative stress.

Kahweol is a natural product in coffee beans. It exhibits a wide variety of biological activities, including inhibiting RANKL-induced osteoclast generation, inducing cell cycle arrest and apoptosis in oral squamous cell carcinoma cells, preventing aflatoxin B1 induced DNA adduct formation, and suppressing H2O2-induced DNA damage and oxidative stress.

K252c is a staurosporine analog and inhibitor of PKC and PKA. It inhibits proliferation of human cytomegalovirus and induces apoptosis in cancer cells.

K252b is a staurosporine analog and PKC inhibitor that suppresses DNA synthesis. It also inhibits microbial ectoprotein kinases and inhibits IgE cross-linking-dependent degranulation in basophils.