quercetin (standard)

Quercetin (Standard) is a reference standard for research and analysis in studies involving Quercetin. Quercetin, a flavonoid natural product, is a SIRT1 activator. It is also a PI3K inhibitor, inhibiting PI3Kγ, PI3Kδ, and PI3Kβ with IC50 values of 2.4, 3.0, and 5.4 μM, respectively. Recognized as a heat shock protein inhibitor, Quercetin can significantly reduce exosome release in TII models by downregulating Hsp70 or Hsp90.

Isoquercetin (Standard) is a reference standard for research and analysis in studies involving Isoquercetin. 1. Isoquercetin (3-Glucosylquercetin) is a potential stimulator of bone mineralization used for prophylaxis of osteoporotic disorders. 2. Isoquercetin may be as a potential therapeutic agent against neurodegeneration in Parkinson's disease. 3. Isoquercetin is an inhibitor of Wnt/β-catenin and may be as a potential novel anti-tumoral agent, such as against human pancreati,liver cancer related to opioid receptors and to the activation of the mitogen-activated protein kinase (MAPK) signalling pathway. .

Vincetoxicoside B (Standard) is a reference standard for research and analysis in studies involving Vincetoxicoside B. Vincetoxicoside B, isolated from Polygonum paleaceum Wall. Vincetoxicoside B , quercetin, kaempferol , and (-)-epicatechin show synergistic antifungal activities with the FICI values <0.5.

Guaijaverin (Standard) is a reference standard for research and analysis in studies involving Guaijaverin. 1. Guaijaverin (Quercetin-3-Arabinoside) is a urease inhibitor. 2. Guaijaverin has antioxidant activity. 3. Guaijaverin has antibacterial activity against Strep. mutans.

Quercitrin (Standard) is a reference standard for research and analysis in studies involving Quercitrin. Quercitrin (3-rhamnosyl quercetin) is a plant-derived flavonoid compound, displays antioxidant and anti-inflammatory activities. Quercitrin can be found in a number of food items such as garden tomato (var. ), German camomile, endive, and kiwi, which makes quercitrin a potential biomarker for the consumption of these food products.

Reynoutrin (Standard) is a reference standard for research and analysis in studies involving Reynoutrin. Reynoutrin (Reinutrin) with antioxidant and radical-scavenging activity.

Baimaside (Standard) is a reference standard for research and analysis in studies involving Baimaside. Quercetin-3-O-sophoroside is a scavenger of superoxide anion isolated from the flowers of A. venetum.

Miquelianin (Standard) is a reference standard for research and analysis in studies involving Miquelianin. Miquelianin (Quercetin 3-glucuronide) is a potent stilbene oxidase inhibitor, it has antioxidant, anti-atherogenic, and anti-inflammatory activities.

Quercetin 3-gentiobioside (Standard) is a reference standard for research and analysis in studies involving Quercetin 3-gentiobioside. Quercetin 3-gentiobioside (Quercetin-3-gentiobioside) is an inhibitor of AR and AGE formation and can be extracted from A. iwayomogi.Quercetin 3-gentiobioside inhibits the biological activity of aldose reductase (AR) and the formation of advanced glycosylation end products (AGEs).

Quercetin 3-O-rutinoside-7-O-glucoside (Standard) is a reference standard for research and analysis in studies involving Quercetin 3-O-rutinoside-7-O-glucoside. Quercetin 3-O-rutinoside-7-O-glucoside (compound 8), an antioxidant present in Hemerocallis fulva, exhibits potent inhibitory action against lipid peroxidation [1].

Quercimeritrin (Standard) is a reference standard for research and analysis in studies involving Quercimeritrin. Quercimeritrin (Quercetin-7-O-beta-D-glucopyranoside) has antibacterial activity, it shows promising activity against Staphylococcus aureus.

Quercetin Dihydrate (Standard) is a reference standard for research and analysis in studies involving Quercetin Dihydrate. Quercetin Dihydrate (Sophoretin) is a polyphenolic flavonoid that was found in a wide variety of plant-based foods, such as apples, onions, berries, and red wine. It is used for their nervous system and anticancer effects.

Retusin (Standard) is a reference standard for research and analysis in studies involving Retusin. Retusin is derived from the leaves of Talinum triangulare. Retusin Retusin can be used in studies about acting as pre- and postemergent herbicides.

Rutin (Standard) is a reference standard for research and analysis in studies involving Rutin. Rutin (Quercetin 3-O-rutinoside) belongs to the flavonoid group of natural products with blood-brain barrier permeability. Rutin has a wide range of biological activities including antioxidant, anti-inflammatory, anti-tumor, hypoglycemic, neuroprotective, anti-bacterial, anti-aging and so on.

Rhamnetin (Standard) is a reference standard for research and analysis in studies involving Rhamnetin. Rhamnetin (beta-Rhamnocitrin), a quercetin derivative found in Coriandrum sativum, has antioxidant and anti-inflammatory activities. Rhamnetin inhibits secretory phospholipase A2.

Amentoflavone (Standard) is a reference standard for research and analysis in studies involving Amentoflavone. Amentoflavone (3',8''-Biapigenin), as a potent inhibitor of CYP3A4 and CYP2C9, can interact with many other medications. CYP3A4 and CYP2C9 are proteins used for drug metabolism in the body. Amentoflavone also is an inhibitor of human cathepsin B. It has antimalarial activity in trials significant affinities towards the Delta-1, kappa opioid receptors (as an antagonist) and binds to benzodiazepine receptors. Amentoflavone may be a potential lead for a new type of anti-inflammatory agents having the dual inhibitory activity of group II phospholipase A2 and cyclooxygenase. Amentoflavone and quercetin differentially exerted suppression of PGE2 biosynthesis via downregulation of COX-2/iNOS expression.

Isorhamnetin (Standard) is a reference standard for research and analysis in studies involving Isorhamnetin. Isorhamnetin (3-methylquercetin) is the methylated metabolite of quercetin. Quercetin is an important dietary flavonoid with in vitro antioxidant activity. Isorhamnetin prevents endothelial cell injuries from oxidized LDL via inhibition of lectin-like ox-LDL receptor-1 upregulation, interference of ox-LDL-mediated intracellular signaling pathway (p38MAPK activation, NF-kappaB nuclear translocation, eNOS expression) and the antioxidant activity of isorhamnetin. Isorhamnetin prevents endothelial dysfunction, superoxide production, and overexpression of p47phox induced by angiotensin II. Isorhamnetin appears to be a potent drug against esophageal cancer due to it's in vitro potential to not only inhibit proliferation but also induce apoptosis of Eca-109 cells.

Quercetin-3-O-β-D-Glucose-7- O-β-D-Gentiobioside (Standard) is a reference standard of Quercetin-3-O-β-D-Glucose-7- O-β-D-Gentiobioside intended for quantitative analysis, quality control, and related biochemical research applications.

Quercetin-13C3 (Standard) is a reference standard of Quercetin-[13C3] intended for quantitative analysis, quality control, and related biochemical research applications.

Quercetin 3-O-sophoroside-7-O-rhamnoside, a natural product of Viola (Violaceae), has catalog number TN4878 and CAS number 64828-40-6. It can be used as a reference standard.

Quercetin 7-O-(6''-O-malonyl)-beta-D-glucoside is a natural product of Justicia, Acanthaceae. The catalog number is TN6522 and the CAS number is 98767-37-4. Quercetin 7-O-(6''-O-malonyl)-beta-D-glucoside can be used as a reference standard.

Quercetin 3,5-O-diglucoside is a natural product that can be used as a reference standard. The CAS number of Quercetin 3,5-O-diglucoside is 206257-35-4.