Polyketide Standards

Rhodiosin (Standard) is the analytical standard of Rhodiosin. This product is intended for research and analytical applications. Rhodiosin is a double inhibitor of CYP2D6 and AChE, and can be isolated from Rhodiolis rhodiolis root. The IC₅₀ for CYP2D6 is 0.761 μM, and the Ki is 0.769 μM. Rhodiosin has antioxidant and neuroprotective activity and can regulate HIF-1α signaling pathway to protect the central nervous system

Chrysin-7-O-glucuronide (Standard) is the analytical standard of Chrysin-7-O-glucuronide (Hy-N2376). This product is intended for research and analytical applications. Chrysin-7-O-glucuronide is a flavonoid found in Scutellaria baicalensis. Chrysin-7-O-glucuronide inhibits α-glucosidase and α-amylase with IC₅₀ values of 612.13 and 980.73 μg/mL. Chrysin-7-O-glucuronide suppresses NF-κB signaling activity. Chrysin-7-O-glucuronide scavenges free radicals, acts as a tight junction protector, and mitigates intestinal mucosal barrier injury. Chrysin-7-O-glucuronide can be used for the research of type 2 diabetes and severe acute pancreatitis-induced intestinal mucosal barrier injury.

Poncirin (Standard) is the analytical standard of Poncirin. This product is intended for research and analytical applications. Poncirin is isolated from Poncirus trifoliata with anti-inflammory activites. Poncirin significantly reduces mechanical hyperalgesia and allodynia in Complete Freund’s Adjuvant (CFA)-induced inflammatory pain models.

Piceatannol 3'-O-glucoside (Standard) is the analytical standard of Piceatannol 3'-O-glucoside. This product is intended for research and analytical applications. Piceatannol 3'-O-glucoside, an active component of Rhubarb, activates endothelial nitric oxide (NO) synthase through inhibition of arginase activity with IC₅₀s of 11.22 μM and 11.06 μM against arginase I and arginase II, respectively.

Guaijaverin (Standard) is the analytical standard of Guaijaverin. This product is intended for research and analytical applications. Guaijaverin is a urease inhibitor with an IC₅₀ of 120 μM. Guaijaverin shows antioxidant and anti-Streptococcus mutans activities.

Leucoside (Standard) is the analytical standard of Leucoside. This product is intended for research and analytical applications. Leucoside is a natural compound isolated from tea seed extract.

Baimaside (Standard) is the analytical standard of Baimaside. This product is intended for research and analytical applications. 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.

Neoliquiritin (Standard) is the analytical standard of Neoliquiritin. This product is intended for research and analytical applications. Neoliquiritin is isolated from Glycyrrhiza uralensis with an anti-inflammatory activity.

Bilobetin (Standard) is the analytical standard of Bilobetin. This product is intended for research and analytical applications. Bilobetin, an active component of Ginkgo biloba, can reduce blood lipids and improve the effects of insulin. Bilobetin ameliorated insulin resistance, increased the hepatic uptake and oxidation of lipids, reduced very-low-density lipoprotein triglyceride secretion and blood triglyceride levels, enhanced the expression and activity of enzymes involved in β-oxidation and attenuated the accumulation of triglycerides and their metabolites in tissues. Bilobetin also increased the phosphorylation, nuclear translocation and activity of PPARα accompanied by elevated cAMP level and PKA activity.

Moslosooflavone (Standard) is the analytical standard of Moslosooflavone. This product is intended for research and analytical applications. Moslosooflavone is a flavonoid isolated from Andrographis paniculata. Moslosooflavone has an anti-hypoxia and anti-inflammatory activities.

3'-Hydroxypuerarin (Standard) is the analytical standard of 3'-Hydroxypuerarin. This product is intended for research and analytical applications. 3'-Hydroxypuerarin is an isoflavone isolated from the roots of Pueraria lobata (Willd.) Ohwi. 3'-Hydroxypuerarin is a antioxidant, which shows marked ONOO(-), NO?, total ROS scavenging activities.

Homoplantaginin (Standard) is the analytical standard of Homoplantaginin. This product is intended for research and analytical applications. Homoplantaginin is a flavonoid from a traditional Chinese medicine Salvia plebeia with antiinflammatory and antioxidant properties. Homoplantaginin could inhibit TNF-α and IL-6 mRNA expression, IKKβ and NF-κB phosphorylation.

Icariside I (Standard) is the analytical standard of Icariside I (HY-N1939). This product is intended for research and analytical applications. Icariside I (GH01) is an orally active metabolite of icalin. Icariside I improves estrogen deficiency-induced osteoporosis by simultaneously regulating osteoblast and osteoclast differentiation. Icariside I promotes ATP (HY-B2176) or Nigericin (HY-127019)-induced mtROS production and NLRP3 inflammasome activation and causes idiosyncratic hepatotoxicity. Icariside I does not alter the activation of NLRC4 and AIM2 inflammasomes. Icariside I inhibits breast cancer proliferation, apoptosis, invasion, and metastasis by targeting the IL-6/STAT3 pathway. Icariside I is a kynurenine-AhR pathway inhibitor that alleviates cancer by blocking tumor immune escape.

Prudomestin (Standard) is the analytical standard of Prudomestin. This product is intended for research and analytical applications. Prudomestin, isolated from the heartwood of Prunus domestica, shows potent xanthine oxidase (XO) inhibitory activity (IC₅₀≈6?μM).

Kaempferol 3-O-gentiobioside (Standard) is the analytical standard of Kaempferol 3-O-gentiobioside. This product is intended for research and analytical applications. Kaempferol 3-O-gentiobioside is a flavonoid isolated from C. alata leaves with antidiabetic activity. Kaempferol 3-O-gentiobioside possesses activity against α-glucosidase and displays carbohydrate enzyme inhibitory effect with an IC₅₀ of 50.0 μM.

Loureirin A (Standard) is the analytical standard of Loureirin A. This product is intended for research and analytical applications. Loureirin A is a flavonoid extracted from Dragon's Blood, can inhibit Akt phosphorylation, and has antiplatelet activity.

Vincetoxicoside B (Standard) is the analytical standard of Vincetoxicoside B. This product is intended for research and analytical applications. Vincetoxicoside B shows antifungal activity.

Robinetin (Standard) is the analytical standard of Robinetin. This product is intended for research and analytical applications. Robinetin (3,3',4',5',7-Pentahydroxyflavone), a naturally occurring flavonoid with remarkable ‘two color’ intrinsic fluorescence properties, has antifungal, antiviral, antibacterial, antimutagenesis, and antioxidant activity. Robinetin also can inhibit lipid peroxidation and protein glycosylation.

Rubiadin (Standard) is the analytical standard of Rubiadin (HY-N0444). This product is intended for research and analytical applications. Rubiadin is an orally active free radical scavenger that inhibits the activation of the NF-κB pathway. Rubiadin inhibits osteoclast formation, bone resorption, lipid peroxidation, HBV DNA replication and cancer cell proliferation; reduces pro-inflammatory cytokine levels; induces cancer cell apoptosis; and possesses antifungal, antimalarial, antibacterial and anticonvulsant activities. Rubiadin can be used in the research of osteoporosis, acute inflammation, chronic inflammation, carbon tetrachloride-induced liver injury, Alzheimer's disease, breast cancer, iron overload disorders, hepatitis B virus infection, colon cancer, liver cancer, T-lymphocytic leukemia, cervical cancer, diabetic nephropathy, epileptic seizures, fungal infections, malaria and bacterial infections.

Quercimeritrin (Standard) is the analytical standard of Quercimeritrin. This product is intended for research and analytical applications. Quercimeritrin, isolated from the leaves of Ixeridium dentatum, exhibits significant amylase activity.