A natural product which effectively kills malarial parasites of the genus Plasmodium (IC50 = 4.0 nM); also used against a wide range of trematodes, including Schistosoma; has potential applications in certain types of cancer and inflammatory conditions.

A competitive HDAC inhibitor that inhibits HDAC1 (IC50 = 0.25 μM) and HDAC3 (IC50 = 0.30 μM); causes cell differentiation, cell cycle arrest, or apoptosis.

An NSAID commonly used in animals to combat pain and inflammation, particularly as associated with osteoarthritis; inhibits both COX-1 and COX-2 (IC₅₀s = 22.3 and 3.9 µM, respectively) and also FAAH (IC₅₀ = 74 µM).

An imidazoquinoline compound that activates TLR7 (EC₅₀ = 2.1 µM) on immune cells, inducing the production of IFN-α, IL-12, and other mediators; up-regulates the OGF receptor on cancer cells, blocking cell proliferation (IC₅₀ = 2 µM).

A classical inhibitor of complex I of the mitochondrial electron transport chain, inhibiting NADH/DB oxidoreductase and NADH oxidase with IC₅₀ values of 28.8 and 5.1 nM, respectively; used in animal models of Parkinson’s disease.

A tricyclic antidepressant that inhibits the reuptake of serotonin and norepinephrine and acts as an antagonist at histamine, serotonin, adrenergic, and muscarinic receptors with Ki values in the nanomolar range.

A selective estrogen receptor (ER) modulator; an ER antagonist in breast tissue, effective in treating early breast cancer; an ER agonist in bone and blood vessels and a partial ER agonist in uterine tissues.

A deoxyhexose monosaccharide found on N- and O-linked glycans and glycolipids that exists either as a terminal modification of glycan structures or serves as a point of attachment for adding other sugars; plays a role in A and B blood group antigen substructure determination, selectin-mediated…

A dihydropyridine L-type calcium channel antagonist that displays antihypertensive and antianginal activity; selectively inhibits adenosine A3 receptors (Ki = 3.25 µM) and CYP3A4 catalytic activity (IC₅₀ = 0.148 µM); activates TRPA1 channels, producing an increase in Ca2+…

A chemical chaperone that rescues the trafficking of misfolded proteins and weakly blocks HDAC activity (IC50 = 0.4 mM), leading to cell cycle arrest, differentiation, and/or apoptosis of various tumors.

A major organic tracer generated by burned cellulose; used to evaluate, in atmospheric samples, the burning of wood.

A fluoroquinolone antibiotic that displays broad spectrum antibacterial activity by inhibiting the bacterial regulatory enzyme DNA gyrase (IC₅₀ = 0.92 µg/ml) as well as topoisomerase IV (IC₅₀ = 1.62 µg/ml).

An analog of thalidomide that, at 10 μM, alters gene expression and cell viability in a range of cancer cell lines; induces proliferation and enhances the functional capacity of T-lymphocytes, amplifying co-stimulatory signaling pathways.

A complex of acetaminobenzoic acid, dimethylaminoisopropanol, and inosine in a 3:3:1 ratio; has a number of immunomodulatory effects, including inducing T-lymphocyte differentiation, augmenting macrophage and NK cell functions, and stimulating IL-2 production; shows antiviral activity.

A class III antiarrhythmic agent; inhibits KCNH2 with an IC₅₀ value of 1 µM; also inhibits CYP2C8 and CYP3A4 in vitro at low micromolar concentrations.

A citrus-derived flavonoid that inhibits CYP3A4 activity in human liver microsomes (IC₅₀s = 139-188 μM); demonstrates antifibrotic, lipid lowering, and insulin-like properties.

A chromogenic substrate that, like other tetrazolium compounds, can be reduced to produce a colored formazan derivative; used in the “NBT test” to evaluate the activity of NADPH oxidase in phagocytes; paired with PCIB for the colorimetric detection of alkaline phosphatase activity.

A synthetic intermediate used in glycosylation reactions.

A natural bacterial product used, in certain formulations, as an oral antibiotic for fungal infections of the skin; alters microtubule dynamics, resulting in metaphase arrest.

A second generation antihistamine that acts as a selective histamine H1 receptor antagonist (pKi = 8).

A third generation fluoroquinolone with antibacterial activity; inhibits type II topoisomerases (IC₅₀s = 8.06 and 9.81 µg/ml for DNA gyrase and topoisomerase IV, respectively).

An analog of β-D-glucose in which sulfur replaces the hydroxyl group at the one position, allowing diverse chemical reactions, including click chemistry and polymerization; can be labeled with technetium-99m for analytical and diagnostic procedures.

An H2S donor commonly used in cellular and whole animal experimental systems.

2-(hydroxymethyl)-Pyrimidine is a synthetic intermediate useful for pharmaceutical synthesis.

A low molecular weight nonionic detergent that is commonly used for cell lysis and non-denaturing protein solubilization.

A bile salt formed in the liver by conjugation of cholic acid with taurine that can be used to solubilize lipids and membrane-bound proteins.

A triazole antifungal agent that is effective against most Candida strains.

An orally active broad spectrum antifungal agent that blocks ergosterol biosynthesis by inhibiting the fungal CYP isoform CYP51; potently inhibits the mammalian analog CYP51A1 (IC₅₀ = 63.5 nM), as well as a variety of other CYP isoforms.

An agonist of α2 adrenergic receptors (Ki = 194 nM); used for sedation, anesthesia, and analgesia in non-human mammals.

6-Bromoisoquinoline is a synthetic intermediate useful for pharmaceutical synthesis.

A lysosomal condensation product that selectively eliminates dipeptidyl peptidase I-expressing immune cells, including cytotoxic T cells and natural killer cells.

A natural polyamine that plays diverse roles in signal transduction and metabolism; involved in growth, development, and stress responses in plants.