Polyketide Standards

Genkwanin (Standard) is the analytical standard of Genkwanin. This product is intended for research and analytical applications. Genkwanin is a major non-glycosylated flavonoid with anti-flammatory activities.

Schaftoside (Standard) is the analytical standard of Schaftoside. This product is intended for research and analytical applications. Schaftoside is a flavonoid found in a variety of Chinese herbal medicines, such as Eleusine indica. Schaftoside inhibits the expression of TLR4 and Myd88. Schaftoside also decreases Drp1 expression and phosphorylation, and reduces mitochondrial fission.

Silychristin (Standard) is the analytical standard of Silychristin. This product is intended for research and analytical applications. Silychristin is an abundant flavonolignan present in the fruits of Silybum marianum, with antioxidant properties. Silychristin is a potent inhibitor of the thyroid hormone transporter MCT8, and elicits a strong inhibition of T3 uptake with an IC50 of 110 nM.

Kaempferitrin (Standard) is the analytical standard of Kaempferitrin. This product is intended for research and analytical applications. Kaempferitrin is a natural flavonoid, possesses antinociceptive, anti-inflammatory, anti-diabetic, antitumoral and chemopreventive effects, and activates insulin signaling pathway.

Vitexin-2"-O-rhamnoside (Standard) is the analytical standard of Vitexin-2"-O-rhamnoside (HY-N0534). This product is intended for research and analytical applications. Vitexin-2"-O-rhamnoside is an orally active flavonoid glycoside. Vitexin-2"-O-rhamnoside inhibits Apoptosis, increases the phosphorylation levels of PI3K/Akt, inhibits caspase-3, SOD activity, and promotes cytokine (IL-2, IL-6, and IL-12) secretion. Vitexin-2"-O-rhamnoside strongly inhibits DNA synthesis in MCF-7 cells with an IC₅₀ of 17.5 μM. Vitexin-2"-O-rhamnoside enhances immune function and improves the absorption of active compounds. Vitexin-2"-O-rhamnoside has antioxidant activity. Vitexin-2"-O-rhamnoside is used in the study of cardiovascular disease and immune-related diseases.

2"-O-Galloylhyperin (Standard) is the analytical standard of 2"-O-Galloylhyperin (HY-N0526). This product is intended for research and analytical applications. 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.

Calycosin-7-O-β-D-glucoside (Standard) is the analytical standard of Calycosin-7-O-β-D-glucoside. This product is intended for research and analytical applications. Calycosin-7-O-β-D-glucoside is an isoflavone isolated from Astragali Radix. Calycosin-7-O-β-D-glucoside has variety of biological activities, such as neuroprotective, cardioprotection, anti-inflammation, and antioxidative stress effects.

Casticin (Standard) is the analytical standard of Casticin. This product is intended for research and analytical applications. Casticin is a methyoxylated flavonol isolated from Vitex rotundifolia, with antimitotic and anti-inflammatory effect. Casticin inhibits the activation of STAT3.

Pectolinarigenin (Standard) is the analytical standard of Pectolinarigenin. This product is intended for research and analytical applications. Pectolinarigenin is an orally active dual inhibitor of COX-2/5-LOX with anti-inflammatory, antioxidant, antitumor and neuroprotective activities. Pectolinarigenin exerts neuroprotective and anti-inflammatory effects on astrocyte inflammation via the NFκB and MAPK pathways. Pectolinarigenin inhibits LPS-induced phosphorylation of ERK1/2, N-FκB and p38MAPK, directly inhibits the enzymatic activity or binding of COX-2, 5-LOX and HIF-1α, and reduces the level of XIAP. Pectolinarigenin modifies Keap1 to promote nuclear accumulation of Nrf2, induces ARE-mediated antioxidant enzyme expression, and possesses direct free radical scavenging activity. Pectolinarigenin reduces the release of NO, proinflammatory mediators and leukotrienes, and increases the level of IL-10. Pectolinarigenin induces G₂/M cell cycle arrest, apoptosis (Apoptosis) and autophagy (Autophagy) via the PI3K/AKT/mTOR signaling pathway. Pectolinarigenin reduces renal crystal deposition and inhibits melanin synthesis. Pectolinarigenin inhibits inflammation and alleviates allergy in mouse models of inflammation. Pectolinarigenin alleviates renal injury, inflammation and oxidative stress in mice by inhibiting HIF-1α activity. Pectolinarigenin can be used for the research of neurodegenerative diseases, inflammatory/allergic diseases, calcium oxalate nephrocalcinosis, gastric cancer, melasma, post-inflammatory diseases and chloasma.

Pectolinarin (Standard) is the analytical standard of Pectolinarin. This product is intended for research and analytical applications. Pectolinarin possesses anti-inflammatory activity. Pectolinarin inhibits secretion of IL-6 and IL-8, as well as the production of PGE2 and NO. Pectolinarin suppresses cell proliferation and inflammatory response and induces apoptosis via inactivation of the PI3K/Akt pathway.

Ononin (Standard) is the analytical standard of Ononin. Ononin is an orally active isoflavone. Ononin inhibits the ERK/JNK/p38 and PI3K/Akt/mTOR pathways. Ononin regulates Apoptosis. Ononin has anti-tumor effects on laryngeal cancer and lung cancer. Ononin has neuroprotective effects. Ononin alleviates endoplasmic reticulum stress and diabetic nephropathy.

Irisflorentin (Standard) is the analytical standard of Irisflorentin. This product is intended for research and analytical applications. Irisflorentin, a naturally occurring isoflavone, is an abundant active constituent in Belamcanda chinensis. Irisflorentin markedly reduces the transcriptional and translational levels of inducible nitric oxide synthase (iNOS) as well as the production of NO. Anti-inflammatory activity.

Epmedin C (Standard) is the analytical standard of Epmedin C. This product is intended for research and analytical applications. Epmedin C (Epimedin-C; Baohuoside-VI) is an orally active anti-inflammatory agent and immunomodulator that binds to multiple key proteins including UCP1, Caspase-1, CDK2 and Keap1. Epmedin C inhibits epithelial cell proliferation by disrupting the complex function of CDK2/Cyclin E. Epmedin C also upregulates Nrf2 expression, reduces ROS levels and inhibits pro-inflammatory cytokine secretion, thereby effectively restoring antibody production and alleviating tissue damage. Epmedin C has good safety with no hepatotoxicity or skin sensitization, and it has been used in studies on diseases such as obesity, Deoxynivalenol (HY-N6684)-induced immunotoxicity and mammary hyperplasia.

Epimedin B (Standard) (Epmedin B (Standard)) is the analytical standard of Epimedin B (HY-N0259). This product is intended for research and analytical applications. Epimedin B (Epmedin B) is a flavonoid active component found in Epimedium, with oral activity, and exhibits anti-osteoporotic and neuroprotective effects. Epimedin B inhibits RANKL-induced osteoclast differentiation, F-actin ring formation, and mature osteoclast bone resorption, inhibits the phosphorylation of JNK, p38 MAPK, PI3K, and AKT, activates the AMPK-Nrf2 antioxidant pathway, and reduces cellular and mitochondrial ROS. Epimedin B acts on ESR1 and exerts its effects via GPER. Epimedin B alleviates bone loss and improves bone microstructure in vivo, and in Parkinson's models protects dopaminergic neurons and maintains striatal dopamine levels through anti-apoptotic and anti-endoplasmic reticulum stress effects. Epimedin B can be used for research related to osteoporosis, diabetic osteoporosis, and Parkinson's disease.

Epimedin A (Standard) is the analytical standard of Epimedin A (HY-N0257). This product is intended for research and analytical applications. 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.

Phlorizin (Floridzin) (Standard) is the analytical standard of Phlorizin. This product is intended for research and analytical applications. Phlorizin is an orally active non-selective sodium-glucose cotransporter (SGLT) inhibitor, with an IC₅₀ of 0.04 μM and a K_i of 39 nM against hSGLT2, and an IC₅₀ of 0.17 μM and a K_i of 0.31 μM against hSGLT1. Phlorizin promotes GLUT4 translocation, inhibits gluconeogenesis and promotes glycogen synthesis by activating the PI3K/Akt/mTOR pathway. Phlorizin reduces DNA damage and apoptosis (apoptosis) by inhibiting the NF-κB inflammatory pathway. Phlorizin induces apoptosis via activating the Caspase pathway by antagonizing the JAK/STAT3 and PCK pathways. Phlorizin also exhibits antibacterial, anti-inflammatory and neuroprotective activities.

Isoliquiritigenin (Standard) is the analytical standard of Isoliquiritigenin. This product is intended for research and analytical applications. Isoliquiritigenin is an anti-tumor flavonoid from the root of Glycyrrhiza uralensis Fisch., which inhibits aldose reductase with an IC50 of 320 nM. Isoliquiritigenin is a potent inhibitor of influenza virus replication with an EC50 of 24.7 μM.

Erythromycin Ethylsuccinate (Standard) is the analytical standard of Erythromycin Ethylsuccinate. This product is intended for research and analytical applications. Erythromycin Ethylsuccinate is an antibiotic useful for the treatment of a number of bacterial infections, has an antimicrobial spectrum similar to or slightly wider than that of penicillin. Erythromycin Ethylsuccinate has antiviral activity against HIV-1.

Tylosin (Standard) is the analytical standard of Tylosin. This product is intended for research and analytical applications. Tylosin (Tylosin A) is a macrolide antibiotic found naturally as a fermentation product of Streptomyces fradiae. Tylosin exerts potent antimicrobial activity against Gram-positive bacteria. Tylosin is widely used as a feed additive for promoting animal growth. Tylosin is used for veterinary purposes against bacterial dysentery and respiratory diseases in poultry, pigs and cattle.

Silybin A (Standard) is the analytical standard of Silybin A. This product is intended for research and analytical applications. Silybin A (Silibinin A), an effective anti-cancer and chemopreventive agent, has been shown to exert multiple effects on cancer cells, including inhibition of both cell proliferation and migration.