A cell-permeable, fluorescent dye that accumulates in acidic organelles in a pH-dependent manner and is used for autophagy detection and cell cycle determination; emits green fluorescence (ex. max: 502 nm; ,em. max: 525 nm) at neutral pH or when bound to dsDNA and red fluorescence (ex. max: 460 nm;…

An inhibitor of fibrinolysis that blocks the interaction of plasmin with fibrin (IC₅₀ = 3.1 µM).

Sodium butyrate is an inhibitor of histone deacetylases (HDACs) that exhibits antidepressant, immunomodulatory, and anticancer activities. In animals undergoing the light dark test, tail suspension test, and forced swim test, sodium butyrate decreases restraint stress-induced depression. In…

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 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.

β-estradiol is a potent mammalian estrogenic hormone produced by the ovary. Triggers the production of gonadotropins leading to ovulation. β-Estradiol is used to study cell differentiation and transformations (tumorigenicity). The pharmacology and HPLC determination of β-Estradiol…

Hydrocortisone, a primary glucocorticoid secreted by the adrenal cortex. It has three times the anti-inflammatory potency of corticosterone but much lower Na2+ retention potency. Hydrocortisone, known more formally as cortisone (INN, USAN, BAN), is a steroid hormone, produced by the zona…

An inhibitor of human recombinant PDE5 (IC₅₀ = 5.9 µM); used to treat erectile dysfunction and has been shown to have anti-cancer and antioxidant activity; induces differentiation of cardiomyocytes and increases the proliferation and differentiation of cultured human osteoblasts.

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.

Cimetidine is an antihistamine that inhibits H2 histamine receptors, exhibiting antacid and anticancer chemotherapeutic activities. Cimetidine inhibits catalase activity and also acts as an antagonist at androgen receptors. Cimetidine increases the efficacy of chemotherapeutic compounds when…

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

Acetyl-L-carnitine is a derivative of carnitine that enables functions of CoA and plays a significant role in the maintenance of energy homeostasis. Acetyl-L-carnitine exhibits antidepressant, neuroprotective, analgesic, and antinociceptive activities. In vivo, acetyl-L-carnitine acetylates p65,…

Cholesterol is the principal sterol of the higher animals, found in all body tissues. It is the main constituent of gallstones and all biological membranes. Approximately 25% of total brain lipid is cholesterol. Cholesterol, followed by the chemical suffix -ol for an alcohol, is an organic chemical…

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 synthetic intermediate useful for pharmaceutical synthesis.

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

GSH is a tripeptide (γ-glutamylcysteinylglycine) widely distributed in both plants and animals. GSH serves as a nucleophilic co-substrate to glutathione transferases in the detoxification of xenobiotics and is an essential electron donor to glutathione peroxidases in the reduction of…

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 cyclic oligosaccharide containing seven D-(+)-glucopyranose units that is widely used to improve the aqueous solubility of various compounds, especially those containing a phenyl group.

A flavone that modulates xenobiotic metabolism; antagonizes AhR at nanomolar concentrations, although it agonizes AhR at higher concentrations (10 µM); inhibits CYP19, CYP1A1, CYP1A2, and CYP1B1 (IC₅₀s = 500, 60, 6, and 5 nM, respectively), whereas it activates CYP3A4 (Kd = 7.4 µM).

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

Adenosine triphosphate (ATP) disodium is clinically used to inhibit reperfusion injury after myocardial infarction during percutaneous coronary intervention; it also improves left ventricular function in clinical settings. ATP itself is a coenzyme and unit of cellular energy. ATP is required for…

An unsaturated fatty acid found in royal jelly produced from the hypopharyngeal and mandibular gland secretions of honeybees; isolated in conjunction with 10-HDA (Item No. 10976) and both demonstrate weak estrogenic activity, inhibiting binding of 17β-estradiol (Item No. ISO60155) to estrogen…

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…

Aminoguanidine is equipotent to L-NMMA and L-NNA as an inhibitor of iNOS. The IC₅₀ values for inhibition of mouse iNOS and rat nNOS are 5.4 and 160 µM, respectively. Aminoguanidine also inhibits induction of iNOS protein expression by endotoxin in rat macrophages.

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 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.

L-Citrulline is a by product of NO formation from metabolism of L-arginine that exhibits tocolytic and antioxidative activities. L-Citrulline was originally found in watermelon. In isolated rat uteri, L-citrulline decreases uterine contractile force through stimulation of the NO-cGMP relaxant…

A dye used to stain proteins for IEF and SDS-PAGE; fluoresces near infrared (absorption maximum: 624 nm).

A dye that is commonly used in laboratories to stain or quantify proteins; typically gives blue bands on a clear background with a sensitivity of 50-100 ng/band; displays metachromasia by appearing pink-red, rather than blue, when binding certain proteins, such as collagen and histone H1.