The ethanolamine amide of DHA that has been detected in both brain and retina at concentrations similar to those for AEA; binds to the rat brain CB1 receptor (Ki = 324 nM), which is approximately 10-fold higher than the Ki for AEA; inhibits shaker-related voltage-gated potassium channels in brain…

An apigenin flavone C-glycoside isolated from various tropical plant species that demonstrates broad antioxidant, anti-inflammatory, anticancer, and antinociceptive activities.

An analog of suramin that selectively inhibits P2X1 receptors (pIC50 = 6.3); selectively antagonizes the Gsα-subunit G protein, which suppresses the association rate of GTPγS binding to Gsα-s, inhibits the stimulation of adenylyl cyclase activity, and blocks G protein coupling to…

A quinone derivative that inhibits red blood cell PLA2 with a Ki value of 130 µM.

A succinimide that is converted to N-desmethylmethosuximide, a channel blocker that targets low threshold calcium currents; inhibits CYP2C19-mediated metabolism of biguanides; has anticonvulsant properties in clinical trials.

An ERβ Selective agonist; exhibits 70-fold higher relative binding affinity for ERβ versus ERα.

n-Triacontanol is a plant growth regulator found in the plant cuticle waxes and in beeswax as the palmitate ester. n-Triacontanol has been reported to have growth enhancing properties when applied to the leaves of growing plants.

A natural alkaloid with antiviral properties, inhibiting the replication of hepatitis B alone and in combination with lamivudine; prevents fibrosis in a number of organs including liver, at least in part by interfering with TGF-β signaling.

An activator of the HIF signaling pathway, as demonstrated by HRE reporter assay (EC₅₀ = 1.2 µM), HIF-1α nuclear translocation assay (EC₅₀ = 1.3 µM), and increased VEGF expression (EC₅₀ = 1.6 µM); activity is blocked by excess iron,…

A sulfonyl hydrazide that inhibits BCATc (IC₅₀s = 0.81 and 0.2 µM in human and rat, respectively) with 15-fold selectivity over BCATm; blocks calcium influx into neurons (IC₅₀ = 4.8 µM) following inhibition of glutamate uptake and demonstrates neuroprotective…

A NO donor with a half-life of three hours at 37°C, pH 7.4; liberates two moles of NO per mole of parent compound.

An anti-inflammatory compound from the diaryl heterocycle class that selectively inhibits COX-2 (IC50s = 22.9 and 0.05 μM for COX-1 and COX-2, respectively; displays chemopreventive activity in multiple tumor types via proapoptotic effects independent of its capacity to block COX-2.

A broad-spectrum tetracycline antibiotic which has a particularly long half-life in serum; commonly used in the treatment of acne in older patients; also has both anti-inflammatory and neuroprotective actions.

A non-ionic, water-soluble X-ray contrast agent for intravascular administration; can cause acute kidney injury and is used in animal models of contrast-induced nephropathy.

A biotinylated reagent used for the detection and quantification of apurinic/apyrimidinic (AP) sites in damaged DNA; reacts with aldehyde groups formed when reactive oxygen species depurinate DNA, thereby covalently linking biotin to these AP sites.

A potent pan inhibitor of class I catalytic subunits of PI3K, inhibiting p110α, β, δ, and γ with IC50 values of 3, 33, 3, and 75 nM, respectively; inhibits the growth of certain types of cancer cells, and blocks signaling through PI3K to Akt, both in cells and in vivo.

Selectively inhibits ALK1 (IC₅₀ = 46 nM) and ALK2 (IC₅₀ = 32 nM) with >300-fold selectivity over ALK3, ALK6, and VEGF type 2 receptor; inhibits BMP4 signaling with an IC₅₀ value of 152 nM in a functional assay.

A powerful effector in both the TetR and revTetR transcriptional regulator systems, binding the Tet repressor 35-fold more strongly than Tet; does not act a general inhibitor of translation and is a poor antibiotic.

An ATP-competitive Pim-1 kinase inhibitor (IC₅₀ = 50 nM) that displays selectivity over the related kinases, Pim-2 and MEK1/2 (IC₅₀s = >20 µM).

A monoamine neurotransmitter produced in serotonergic neurons in the CNS and in enterochromaffin cells in the gastrointestinal tract that is important in the regulation of mood, sleep, vomiting, sexuality, and appetite.

An orally available inhibitor of microtubule polymerization (IC₅₀ = ~3 µM) that blocks cell cycling at the G2-M phase, which leads to cell death; cytotoxic to a range of cancer cell lines (IC₅₀s = 9-101 nM) and demonstrates antivascular activity in tumors both in vitro…

An α-glucosidase inhibitor (IC₅₀ = 5.6 µM) that delays the absorption and digestion of dietary polysaccharides by reversibly inhibiting digestive enzymes such as maltase, isomaltase, and sucrase (IC₅₀s = 0.18, 5.2, and 0.37 µM, respectively).

A natural anthocyanidin.

A monoacetylated derivative of spermine (Item No. 18041), an endogenous polyamine synthesized from spermidine (Item No. 14918), that displays lower Km and higher Vmax values than spermine, making it a better substrate of polyamine oxidase than the non-acetylated polyamine.

AH 6809 is an EP and DP receptor antagonist with nearly equal affinity for the cloned human EP1, EP2, EP3-III, and DP1 receptors. AH 6809 blocks the PGE2-induced accumulation of cAMP in COS cells transfected with the human EP2 receptor. It also blocks the accumulation of Ca2+ in Xenopus oocytes…

A nonpurine inhibitor of xanthine oxidoreductase (Ki = 0.7 nM) that has proven effective in lowering serum urate levels when administered to manage hyperuricemia in patients with gout.

8-hydroxy Guanine is produced by oxidative damage of DNA or RNA by reactive oxygen and nitrogen species, including hydroxyl radical and peroxynitrite. It serves as a measure of oxidative stress in biological systems.

A selective inhibitor of HDAC3 (IC₅₀ = 289 nM) that alone or in combination with bortezomib has been shown to dose-dependently inhibit tumor growth in a mouse model of multiple myeloma.

A potent disruptor of microtubules used as a chemotherapeutic compound; inhibits growth of cervical (HeLa), lung (A549), breast (MCF-7), colon (HT-29), ovarian (OVG-1), and pancreatic (PC-Sh) carcinomas with IC50 values ranging from 2.5-7.5 nM; induces mitotic arrest and initiates apoptosis of…

A cytotoxic, quinoline alkaloid that inhibits the DNA enzyme topoisomerase I (Top I) by binding the Top1-DNA cleavage complex and inducing DNA-strand breaks; has strong anti-tumor activity and induces DNA damage at concentrations as low as 51 nM in whole cells and 12 nM in isolated nuclei in in…

One of a number of lipophilic, long acyl side-chain bearing AHLs produced by the LuxI AHL synthase homolog SinI involved in quorum-sensing signaling in Sinorhizobium meliloti, a nitrogen-fixing bacterial symbiont of certain legumes; the most abundant AHL produced by the proteobacterium Rhodobacter…

A GABAA receptor agonist whose potency varies depending on the receptor subunit composition (partial agonist at α1β2γ2 (ED50 = 143 µM), full agonist at α5 (ED50 = 28-129 µM), and super agonist at α4β3δ (ED50 = 6 µM)); acts as an antagonist…