A polysaccharide made of α-D-glucose units that constitutes about 20% of starch; acts as an indicator, turning blue in the presence of iodine, and has also been coupled to magnetic beads for the isolation and purification of maltose-binding protein fusion proteins.

5-Bromotetralone is a synthetic intermediate useful for pharmaceutical synthesis.

A synthetic cytokinin used as a media supplement to regulate growth in woody plant tissue cultures and micropropagations; concentrations below 1 µM promote axillary proliferation, whereas concentrations above 1 µM can stimulate the formation of callus, adventitious shoots, or somatic embryos.

A natural retinoid that associates with CRBP-I and CRBP-II (Kds = 50 and 90 nM, respectively), which are involved in the intracellular transport of retinol; an intermediate of the phototransduction pathway of photoreceptors; can form toxic conjugates with proteins and lipids, leading to…

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…

A potent dopamine receptor agonist that binds the D2 receptor with highest affinity (Ki = 2.5 nM); avidly binds the serotonin receptors 5-HT1A and 5-HT1D (Ki = 12.9 and 10.7 nM, respectively), as well as α and β adrenoreceptors.

An analog of folic acid and aminopterin that is used in the treatment of cancer, autoimmune diseases, ectopic pregnancy, and for the induction of medical abortions; induces adenosine release, inhibits the metabolism of folic acid, and blocks key enzymes in the synthesis of purines and pyrimidines…

An anti-inflammatory steroid.

A natural alkaloid that acts as a selective and reversible α2-adrenergic receptor antagonist (Ki = 12 nM); also acts as a receptor antagonist at the serotonin 5-HT2B receptor (Ki = 14.3 nM).

Phytochemical from cruciferous vegetables that demonstrates anticancer and chemopreventative effects (10-30 µM) involving the induction of Phase 2 enzymes, promotion of apoptosis, induction of cell cycle arrest, inhibition of cell proliferation, and inhibition of histone deacetylases and DNA…

Keystone essential fatty acid that is converted by COX, LO, and epoxygenase enzymes into more than 150 potent metabolites in species ranging from fungi to plants to mammals.

A synthetic intermediate useful for pharmaceutical synthesis.

An HDAC inhibitor of class I and class II HDACs at around 50 nM; arrests cell growth in a wide variety of transformed cells in culture at 2.5-5.0 µM.

A broad-spectrum nitrofuran antibiotic used against urinary tract infections and as therapy for acute diarrhea of bacterial origin; inhibits the survival and migration of cancer cells, suppressing tumor growth and metastasis in vivo, at least in part by inhibiting STAT3 (IC₅₀ = 10 µM).

A plant lectin that selectively cross-links cell-surface glycoproteins and affects the initiation of cell agglutination, mitogenesis, and apoptosis; widely used in affinity chromatography purifications of various glycoproteins and cellular structures; also used to induce liver injury in…

A steroid hormone produced in the cortex of the adrenal glands that binds to both glucocorticoid and mineralocorticoid receptors; also is the precursor to aldosterone synthesis.

A synthetic intermediate used in glycosylation reactions.

A β-lactam antibiotic in the cephalosporin class.

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

A natural triterpenoid carboxylic acid that is known to have antioxidative, antimicrobial, anti-inflammatory, and anticancer activities; inhibits Na+/K+-ATPase activity (IC50 = 24.7 μM) and blocks NF-κB activation in various human cancer cells lines (10-100 μM), inhibiting cell…

A non-depolarizing muscle relaxant that competitively blocks cholinergic receptors at the motor end plate of the neuromuscular junction, inducing temporary paralysis.

A synthetic analog of 2'-deoxy-guanosine which is used to treat or prevent cytomegalovirus (CMV) infections; inhibits the replication of human CMV with an IC₅₀ value of 0.01 μM and is effective against strains of CMV from human, monkey, mouse, and guinea pig.

Capsaicin is the primary active component of the heat and pain-eliciting lipid-soluble fraction of the Capsicum pepper. Capsaicin is present in natural hot pepper extracts along with a number of impurities, including dihydrocapsaicin and several lesser impurities. Separation by HPLC is required in…

A plant growth regulator involved in the signaling mechanisms for a variety of conditions including plant defense, wound healing, tuberization, fruit ripening, and senescence.

Pure Canavalia ensiformis lectin (Con A) from Jackbean. Isolated by affinity chromatography on cross-linked dextran. Con A exists as a dimer below pH 5.0 and and at pH >7 it exists as a tetramer. Con-A is not a glycoprotein. The monomeric molecular weight of Con-A is 25,500. Con-A does not…

A nonfixable red fluorescent dye (excitation max: 586 nm; emission max: 605 nm) that can be used as a specific marker for astrocytes and an activity-dependent probe for monitoring regulated exocytosis.

A glycopeptide antibiotic identified for its utility in the treatment of gram-positive bacteria, including penicillin-resistant staphylococci; binds to bacterial cell wall precursors, interfering with their synthesis.

A fluorescent indicator of peroxynitrite formation; neither NO, superoxide, nor hydrogen peroxide alone appear to oxidize DCFH.

An organic polysulfide compound found in garlic that acts as an H2S donor; reduces the survival of prostate cancer PC-3 cells (IC50 = 22 μM) and inhibits the growth of human colon adenocarcinoma HCT15 cells (IC50 = 11.5 μM); suppresses the growth of PC-3 xenografts in vivo in mice and induces…

An intermediate in the interconversion of glucose and galactose.

ALA is an essential fatty acid found in leafy green vegetables. ALA, as part of a low saturated fat diet, helps prevent cardiovascular disease. ALA decreases blood pressure, serum cholesterol levels, and platelet aggregation.

A progesterone analog (i.e., a progestin); does not bind the ER, however, two of its A-ring metabolites can bind ER and possess weak estrogenic activity.