Stilbenes

Pterostilbene is a stilbenoid isolated from blueberries and Pterocarpus marsupium. Shows anti-oxidant, anti-inflammatory, anti-carcinogenic, anti-diabetic and anti-obesity properties. Pterostilbene blocks ROS production, also exhibits inhibitory activity against various free radicals such as DPPH, ABTS, hydroxyl, superoxide and hydrogen peroxide.

Salvianolic acid A could protect the blood brain barrier through matrix metallopeptidase 9 (MMP-9) inhibition and anti-inflammation.

(E/Z)-Polydatin ((E/Z)-Piceid) is a mixture of the E/Z configurations of Polydatin (HY-N0120A). Polydatin can be isolated from Polygonum cuspidatum, grapes, peanuts, red wine, hop pellets, cocoa-containing products and chocolate products. Polydatin exhibits multiple biological properties, such as anti-platelet aggregation, anti-low-density lipoprotein oxidation, cardioprotective activity, anti-inflammatory and immunomodulatory functions. Polydatin shows favorable cytotoxic effects against various tumor cell lines, including cervical cancer cells, liver cancer cells, and nasopharyngeal carcinoma cells.

Polydatin (Piceid), extracted from the roots of Reynoutria japonica, a widely used traditional Chinese remedies, possesses anti-inflammatory activity in several experimental models. Polydatin (Piceid) inhibits G6PD and induces oxidative and ER stresses.

Piceatannol is a well-known Syk inhibitor and reduces the expression of iNOS induced by TNF. Piceatannol is an effective agent for research of acute lung injury (ALI). Piceatannol is a naturally occurring polyphenolic stilbene found in various fruits and vegetables and exhibits anticancer and anti-inflammatory properties. Piceatannol induces apoptosis in DLBCL cell lines. Piceatannol induces autophagy and apoptosis in MOLT-4 human leukemia cells.

Combretastatin A4 is a microtubule-targeting agent that binds β-tubulin with K_d of 0.4 μM.

2,3,5,4'-Tetrahydroxystilbene 2-O-β-D-glucoside isolats from the roots of Polygonaceae species, inhibits the formation of 5-HETE, HHT and thromboxane B2. 2,3,5,4'-Tetrahydroxystilbene 2-O-β-D-glucoside has hypotensive, anti-ageing, anti-inflammatory, hypolipidemic, cardioprotective, and neuroprotective actions.

Oxyresveratrol (trans-Oxyresveratrol) is a potent naturally occurring antioxidant and free radical scavenger (IC₅₀ of 28.9 µM against DPPH free radicals). Oxyresveratrol is potent and noncompetitive tyrosinase inhibitor with an IC₅₀ value of 1.2 µM for mushroom tyrosinase. Oxyresveratrol is effective against HSV-1, HSV-2 and varicella-zoster virus, and has neuroprotective effects.

Mulberroside A is one of the main bioactive constituent in mulberry (Morus alba L.). Mulberroside A decreases the expressions of TNF-α, IL-1β, and IL-6 and inhibits the activation of NALP3, caspase-1, and NF-κB and the phosphorylation of ERK, JNK, and p38, exhibiting anti-inflammatory antiapoptotic effects. Mulberroside A shows inhibitory activity against mushroom tyrosinase with an IC₅₀ of 53.6 μM.

Isorhapontigenin is an orally active dietary polyphenol. Isorhapontigenin acts as a potent antioxidant that reduces the production of reactive oxygen species (ROS). Isorhapontigenin promotes the binding of JUN to the AP-1 site on the SESN2 promoter, induces SESN2 transcription, triggers MAPK8-dependent JUN activation, and upregulates the expression of PPAR-α, PGC-1α and CPT-1A to facilitate fatty acid oxidation. Isorhapontigenin induces autophagy, apoptosis and preadipocyte differentiation; it inhibits tumor growth, cell invasion, NF-κB transcriptional activity, the PI3K/Akt signaling pathway, STAT1 phosphorylation and MMP-2 expression. Isorhapontigenin alleviates oxidative stress, inflammatory cytokine release and triglyceride accumulation; it increases intracellular ATP levels and promotes Nrf2 nuclear translocation. Isorhapontigenin improves insulin sensitivity in adipose tissue and glucose tolerance, and reduces postprandial blood glucose, insulin and free fatty acid levels. Isorhapontigenin is applicable to research on bladder cancer, liver injury, chronic obstructive pulmonary disease, acute lung injury and type 2 diabetes.

Fosbretabulin disodium (CA 4DP) is a tubulin destabilizing agent. Fosbretabulin disodium is the Combretastatin A4 proagent that selectively targets endothelial cells, induces regression of nascent tumour neovessels, reduces tumour blood flow and causes central tumour necrosis.

Rhapontigenin is a natural analog of resveratrol with anticancer, antioxidant, antifungal and antibacterial activities. Rhapontigenin is amechanism-based, potent and selective cytochrome P450 1A1 inactivator (IC₅₀  = 400 nM). Rhapontigenin exhibits 400-fold and 23-fold selectivity for P450 1A1 over P450 1A2 and P450 1B1, respectively.

Rhapontin (Rhaponiticin) is an orally aactive SIRT1 agonist and AMPK activator with anti-inflammatory and anti-fibrotic activities. Rhapontin inhibits NLRP3 inflammasome activation by activating SIRT1 and inhibits TGF-β/Smad signaling via the AMPK pathway. Rhapontin reduces intestinal and lung inflammation, inhibits fibroblast differentiation and extracellular matrix deposition, and enhances tight junction protein expression to repair epithelial barriers. Rhapontin can be used in the study of inflammatory bowel diseases (such as ulcerative colitis) and pulmonary fibrosis.

Pinosylvin is a?pre-infectious stilbenoid toxin?isolated from the heartwood of Pinus species, has anti-bacterial activities. Pinosylvin is a resveratrol analogue, can induce cell apoptosis and autophapy in leukemia cells.

Gnetol is a phenolic compound isolated from the root of Gnetum montanum . Gnetol potently inhibits COX-1 (IC₅₀ of 0.78 μM) and HDAC. Gnetol is a potent tyrosinase inhibitor with an IC₅₀ of 4.5 μM for murine tyrosinase and suppresses melanin biosynthesis. Gnetol has antioxidant, antiproliferative, anticancer and hepatoprotective activity. Gnetol also possesses concentration-dependent α-Amylase, α-glucosidase, and adipogenesis activities.

Resveratroloside (Resveratrol glycoside) is an orally active competitive inhibitor of α-glucosidase. Resveratroloside has hypoglycemic and cardioprotective effects. Resveratroloside can be used for the research of diabetes and heart system diseases.

Polydatin (Standard) is the analytical standard of Polydatin. This product is intended for research and analytical applications. Polydatin (Piceid), extracted from the roots of Reynoutria japonica, a widely used traditional Chinese remedies, possesses anti-inflammatory activity in several experimental models. Polydatin (Piceid) inhibits G6PD and induces oxidative and ER stresses.

3'-Hydroxypterostilbene is a Pterostilbene (HY-N0828) analogue. 3'-Hydroxypterostilbene inhibits the growth of COLO 205, HCT-116 and HT-29 cells with IC₅₀s of 9.0, 40.2 and 70.9 μM, respectively. 3'-Hydroxypterostilbene significantly down-regulates PI3K/Akt and MAPKs signaling pathways and effectively inhibits the growth of human colon cancer cells by inducing apoptosis and autophagy. 3'-Hydroxypterostilbene can be used for the research of cancer.

Astringin (trans-Astringin) is an orally active natural phenolic stilbene glucoside. Astringin can inhibit the production of oxidative stress, inflammatory factors, etc. Astringin has multiple activities such as anti-oxidation, anti-inflammation, and anti-apoptosis. Astringin is also an inhibitor of ferroptosis. Astringin can be used in the research of diseases such as acute lung injury.

Oxyresveratrol 2-O-β-D-glucopyranoside is a phenolic compound isolated from Morus nigra root and is an effective tyrosinase inhibitor with an IC₅₀ of 29.75 μM.