A redox indicator used to detect cellular respiration; primarily reduced by Complex I in mitochondria and, under anaerobic conditions, is completely reduced to an insoluble red 1,3,5-triphenylformazan.

A common C-12 saturated far plentiful in coconut and other nut oils.

A natural form of vitamin A that is thermally more stable than retinol; can reduce cell proliferation and promote differentiation.

A flavonoid compound found in the bark and rinds of many plants and fruits.

A stain that permits the rapid, reversible detection of proteins immobilized on various matrices; used to locate proteins or evaluate efficiency of transfer, or an alternative to actin probing as a loading control; also used as a fiducial marker in mass spectrometric imaging.

An intermediate in the synthesis of tetrahydrofolic acid in many non-mammalian organisms, including bacteria and fungi; metabolized by a variety of enzymes in mammals, including N-acetyltransferases; may also be utilized by bacteria or fungi that are living in mammalian organisms.

Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol is readily oxidized by the heme iron of peroxidases including the peroxidase of COX enzymes. It can therefore serve as a reducing co-substrate for COX reactions. The one-electron oxidation…

A natural flavonoid with antioxidant, anti-inflammatory, and anticancer properties; inhibits HIF-1α expression in cancer cells; decreases pro-inflammatory gene expression and oxidative stress in ischemia/reperfusion injury.

A metabolic precursor of dopamine that crosses the blood brain barrier; used to treat Parkinson’s disease and stroke damage.

A benzoxazolone derivative that causes skeletal muscle relaxation and blocks spasticity in clinical studies; enhances KCa2.2 and KCa3.1 channels (EC₅₀s = 87 and 98 µM, respectively); urinary excretion of its 6-hydroxy metabolite is often used as a probe of CYP2E1 activity in…

A naturally occurring electron donor for eight different enzymes, including those related to collagen hydroxylation, carnitine synthesis (which aids in the generation of ATP), norepinephrine synthesis, tyrosine metabolism, and amidating peptides.

A non-selective, irreversible COX inhibitor with IC₅₀ values of 0.75 and 1.25 mM for ovine COX-1 and COX-2, respectively.

A red/orange-colored fat-soluble terpenoid with antioxidant properties; can be cleaved to produce vitamin A and retinoic acid.

A trace amine that activates TAAR1 (EC₅₀s = 0.08, 0.69, and 2.26 µM for rat, mouse, and human-rat chimera receptors, respectively); inhibits the release of norepinephrine and dopamine (IC₅₀s = 40.6 and 119 nM, respectively).

Commonly used as a pH indicator, a color marker in agarose or polyacrylamide gel electrophoresis, and a dye to detect proteins and nucleic acids (absorbance at 610 nm), particularly when staining living tissues.

A common 16-carbon saturated fatty acid that represents 10-20% of the normal human dietary fat intake.

A first generation histamine H1 receptor antagonist (Ki = 2.6 nM) that also inhibits muscarinic acetylcholine receptors (Ki = 22 nM); penetrates the CNS, depressing central H1 receptor activity, which may relate to its sedative properties.

A dihydroxybenzoic acid phenolic compound that demonstrates free radical scavenging capability (IC₅₀ = 16.3 μM) in a DPPH radical scavenging activity assay; possesses anti-inflammatory, antihyperglycemic, neuroprotective, and anticancer activities.

An inhibitor of respiration in animals and bacteria; binds at the quinone reduction site of succinate:ubiquinone oxidoreductase (SQR; Complex II) in animals, preventing ubiquinone from binding; inhibits NADH fumarate reductase in bacteria; inhibits photosystem II in plants.

A pyrimadine analog that irreversibly inhibits thymidylate synthase, blocking the synthesis of thymidine which is required for DNA synthesis; widely used to treat many gastrointestinal tract adenocarcinomas.

An antibacterial antibiotic that acts by interfering directly with the biosynthesis of peptidoglycan, which constitutes the major component of the bacterial cell wall, leading to structural instability and death of bacteria; used as a selective antibiotic for resistant bacteria.

An an antimicrobial agent that is often used in antiseptics and dental products such as toothpaste and mouthwash; inhibits MMP-2, -8, and -9.

A natural agonist of the human sweet taste receptor and used as a flavorant; has diverse cellular effects at low doses, including antioxidant, anti-inflammatory, antimicrobial, and antiviral actions.

A precursor to Vitamin K2 that is capable of both redox cycling and arylating nucleophilic substrates by Michael addition; used as an antihemorrhagic agent and to inhibit the proliferation of various cancer cells.

A central component of energy storage and metabolism in vivo, providing the metabolic energy to drive metabolic pumps and serving as a coenzyme in a wide array of enzymatic reactions; acts a substrate for kinases involved in cell signaling and of adenylate cyclases that produce the second messenger cAMP.

A potent antioxidant that inhibits the oxidation of cholesterol in LDL and HDL by impairing the translocation of ABCA1 from intracellular compartments to the plasma membrane.

A cyclic diacyl hydrazide that exhibits chemiluminescence upon oxidation; HRP combined with H₂O₂ causes luminescent peroxidation of luminol; can also be oxidized, and chemiluminesce, by compounds containing iron, copper, gold, and cyanide.

A non-selective blocker of voltage-dependent K+-channels (Kv channels) that has greatest potency at Kv1 and Kv3 family members (IC₅₀s = 290, 590, 195, 13, 29, and 100 µM for subunits 1.1, 1.2, 1.3, 1.4, 3.1, and 3.2, respectively); also blocks Kv2 and Kv4 subunits at millimolar concentrations.

A dye which stains proteins in gels with ease and sensitivity; used in the Bradford to quantify the amount of protein in a solution; selectively inhibits P2X7 (IC₅₀s = 10.1 nM and 265 nM for rat and human P2X7, respectively) and reduces neurological injury secondary to traumatic brain…

A short chain fatty acid that inhibits HDACs, induces growth arrest, differentiation and apoptosis in cancer cells, and suppresses inflammation by reducing the expression of pro-inflammatory cytokines.

A synthetic antibiotic that inhibits dihydrofolate reductase (DHFR), with prominent selectivity for bacterial DHFR over mammalian DHFR (IC₅₀s = 5 and 30,000 nM, respectively); commonly used in combination with sulfamethoxazole to minimize acquired resistance.

A fluoroquinolone antibiotic widely used as an antimicrobial and immunomodulatory agent; functions by inhibiting DNA A fluoroquinolone antibiotic widely used as an antimicrobial and immunomodulatory agent; functions by inhibiting DNA gyrase (a type II topoisomerase) and topoisomerase IV, the…