Flavonols

Gossypetin is a hexahydroxylated flavonoid and is a potent mitogen-activated protein kinase kinase (MKK)3 and MKK6 inhibitor with strongly attenuates the MKK3/6-p38 signaling pathway, has various pharmacological activities, including antioxidant, antibacterial and anticancer activities.

Quercetin-3-O-β-D-glucose-7-O-β-D-gentiobiosiden (Quercetin-3-O-beta-D-glucose-7-O-beta-D-gentiobioside) is a flavonoid compound. In Cylas formicarius, Quercetin-3-O-β-D-glucose-7-O-β-D-gentiobioside can bind to chemosensory proteins such as CforCSP5 (K_i: 1.429 μM) and CforOBP3 (K_i: 3.697 μM), potentially participating in the recognition process of insect host plant volatiles. Quercetin-3-O-β-D-glucose-7-O-β-D-gentiobiosiden is also an inhibitor of Sb28GST (IC₅₀: 0.13 mM) and can be used in the research of anti-schistosome agents.

Rutin (Standard) is the analytical standard of Rutin. This product is intended for research and analytical applications. Rutin (Rutoside) is a flavonoid found in many plants and shows a wide range of biological activities including anti-inflammatory, antidiabetic, antioxidant, neuroprotective, nephroprotective, hepatoprotective and reducing Aβ oligomer activities. Rutin is also a CBR1 inhibitor, which can cross the blood brain barrier. Rutin attenuates vancomycin-induced renal tubular cell apoptosis via suppression of apoptosis, mitochondrial dysfunction, and oxidative stress.

Herbacetin is a natural flavonoid from flaxseed, exerts various pharmacological activities, including antioxidant, anti-inflammatory and anticancer effects. Herbacetin is an Ornithine decarboxylase (ODC) allosteric inhibitor, directly binds to Asp44, Asp243, and Glu384 on ODC. Ornithine decarboxylase (ODC) is a rate-limiting enzyme in the first step of polyamine biosynthesis.

Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

Myricitrin, a naturally occurring flavonoid, is an orally active nitric oxide (NO) and PKC inhibitor. Myricitrin has central nervous system activity, including anxiolytic-like action. Myricitrin possesses antioxidant, anti-inflammatory, antifibrotic and anti-malarial effects.

Karanjin is an orally active furanoflavonoid which can be isolated from several Leguminosae. Karanjin exhibits evident anti-diabetic, anti-cancer, anti-inflammatory, antioxidant, anticolitis, anti-ulcer, anti-Alzheimer properties and multiple insect repellent/insecticidal, acaricide properties, suggesting the potential of Karanjin to be applied to relevant research.

Baimaside (Quercetin 3-O-sophoroside) is a flavonoid cholinergic function modulator that binds to SARS-CoV-2-related targets. Baimaside regulates the expression of cholinergic system-related proteins and acetylcholine levels, improves scopolamine-induced learning and memory impairment, protects hippocampal neurons, inhibits pollen protein fluorescence, and protects pollen DNA. Its biosynthesis is regulated by multiple enzymes. Baimaside is completely absorbed in rats, undergoes phase Ⅱ metabolism and gut microbiota decomposition, and inhibits the invasion and proliferation of SARS-CoV-2 and its variants, making it suitable for research related to Alzheimer's disease and COVID-19.

2''-O-Galloylhyperin is an active natural compound with anti‑inflammatory, antioxidant, anti‑adipogenic, antifibrotic, and cytostatic activities. 2''-O-Galloylhyperin upregulates SIRT1/Nrf2 signaling, inhibits NF-κB and MAPK (ERK1/2, p38, JNK) phosphorylation, suppresses TSHR activation, reduces ROS accumulation, and enhances SOD and GSH-Px activities. 2''-O-Galloylhyperin protects against LPS-induced tissue injury, enhances survival, and inhibits adipogenesis and fibrosis. 2"-O-Galloylhyperin can be used for the research of sepsis, acute lung injury, and thyroid eye disease.

Quercetagetin (6-Hydroxyquercetin) is a flavonoid. Quercetagetin is a moderately potent and selective, cell-permeable pim-1 kinase inhibitor (IC₅₀, 0.34 μM). Anti-inflammatory and anticancer properties.

Epimedin A, one of the main flavonoid active components in Herba Epimedii, is orally active. Epimedin A can inhibit osteoclastogenesis, differentiation, and bone resorption. Epimedin A also possesses anti-inflammatory activity. Epimedin A can be used in the research of osteoporosis and inflammatory diseases.

Kumatakenin is an orally active apoptosis inducer and autophagy inhibitor, with a K_d value of 2.94 μM for mouse ATG5. Kumatakenin increases the activities of caspase-3, caspase-8 and caspase-9, thereby inducing caspase-dependent apoptosis in ovarian cancer cells. Kumatakenin reduces the expression of chemokines and pro-oncogenic factors in ovarian cancer cells, and inhibits M2 macrophage polarization. Kumatakenin inactivates TRIM65 function, reduces the expression and stability of FASN, and thus inhibits the proliferation, migration, invasion and tumor progression of esophageal cancer cells. Kumatakenin interacts with ATG5 to reduce its protein level, decrease LC3 level, and reduce the number of autophagosomes in the hippocampus. Kumatakenin binds to Eno3 to upregulate its expression, reduce the stability and expression level of IRP1 mRNA, inhibit ferroptosis, alleviate intestinal inflammation, and restore epithelial barrier function. Kumatakenin enhances the efficacy of antibiotics against pathogenic bacteria, inhibits SARS-CoV-2 replication, and reduces cytokine production. Kumatakenin is applicable to research related to ovarian cancer, esophageal cancer, depression and colitis.

Rhamnetin is a quercetin derivative found in Coriandrum sativum, inhibits secretory phospholipase A2 and histone deacetylase 2 (HDAC2). Rhamnetin exhibits antitumor, antioxidant and anti-inflammatory activity.