Polyketide Standards

(-)-Epicatechin gallate (Standard) is the analytical standard of (-)-Epicatechin gallate. This product is intended for research and analytical applications. (-)-Epicatechin gallate (Epicatechin gallate) inhibits cyclooxygenase-1 (COX-1) with an IC₅₀ of 7.5 μM. (-)-Epicatechin gallate is a GLUT1 and GLUT5 inhibitor. (-)-Epicatechin gallate decreases cell growth of GLUT5-expressing hxt⁰ yeast cells.

Clarithromycin (Standard) is the analytical standard of Clarithromycin. This product is intended for research and analytical applications. Clarithromycin has a broad spectrum of antimicrobial activity. Clarithromycin inhibits the CYP3A4-catalyzed triazolam alpha-hydroxylation with the IC50 (Ki) value of 56 (43) μM. Clarithromycin significantly inhibits the HERG potassium current.Clarithromycin affects the autophagic flux by impairing the signaling pathway linking hERG1 and PI3K.

(-)-Epigallocatechin (Standard) is the analytical standard of (-)-Epigallocatechin. This product is intended for research and analytical applications. (-)-Epigallocatechin (Epigallocatechin) is the most abundant flavonoid in green tea, can bind to unfolded native polypeptides and prevent conversion to amyloid fibrils.

Icariin (Standard) is the analytical standard of Icariin. This product is intended for research and analytical applications. Icariin is a flavonol glycoside. Icariin inhibits PDE5 and PDE4 activities with IC₅₀s of 432 nM and 73.50 μM, respectively. Icariin also is a PPARα activator.

Procyanidin B2 (Standard) is the analytical standard of Procyanidin B2. This product is intended for research and analytical applications. Procyanidin B2 is a natural flavonoid, with anti-cancer, antioxidant activities.

Formononetin (Standard) is the analytical standard of Formononetin. This product is intended for research and analytical applications. Formononetin is a potent FGFR2 inhibitor with an IC50 of ~4.31 μM. Formononetin potently inhibits angiogenesis and tumor growth.

Naringin is a major flavanone glycoside obtained from tomatoes, grapefruits, and many other citrus fruits. Naringin exhibits biological properties such as antioxidant, anti-inflammatory, and antiapoptotic activities. Naringin also inhibits proliferation and invasion and induces apoptosis in human osteosarcoma cells by inhibiting zinc finger E-box binding homeobox 1 (Zeb1).

Myricetin (Standard) is the analytical standard of Myricetin. This product is intended for research and analytical applications. Myricetin is a common plant-derived flavonoid with a wide range of activities including strong anti-oxidant, anticancer, antidiabetic and anti-inflammatory activities.

Emodin (Standard) is the analytical standard of Emodin. This product is intended for research and analytical applications. Emodin (Frangula emodin), an anthraquinone derivative, is an anti-SARS-CoV compound. Emodin blocks the SARS coronavirus spike protein and angiotensin-converting enzyme 2 (ACE2) interaction. Emodin inhibits casein kinase-2 (CK2). Anti-inflammatory and anticancer effects. Emodin is a potent selective 11β-HSD1 inhibitor with the IC₅₀ of 186 and 86 nM for human and mouse 11β-HSD1, respectively. Emodin ameliorates metabolic disorder in diet-induced obese mice.

Baicalin (Standard) is the analytical standard of Baicalin. This product is intended for research and analytical applications. Baicalin, as a flavonoid glycoside, is an allosteric carnitine palmityl transferase 1 (CPT1) activator. Baicalin reduces the expression of NF-κB.

Doxycycline (Standard) is the analytical standard of Doxycycline (HY-N0565). This product is intended for research and analytical applications. Doxycycline is an orally active highly lipophilic, tissue-permeable MMP inhibitor with broad-spectrum antibacterial activity. Doxycycline is also a semi-synthetic antibiotic with chelating properties, which blocks bacterial protein synthesis and inhibits extracellular matrix degradation through interactions with zinc and calcium atoms. Doxycycline also inhibits mitochondrial biogenesis, translation, and the expression of respiratory chain proteins. Doxycycline induces apoptosis, inhibits autophagy and EMT, downregulates stem cell markers, and activates the PI3K-AKT pathway, thereby effectively inhibiting the viability and proliferation of cancer cells such as breast cancer cells. Doxycycline also promotes the survival and self-renewal of embryonic stem cells and neural stem cells, and reduces the frequency of medium changes in culture. Doxycycline has been applied in studies related to breast cancer, prostate cancer, bladder cancer, and other cancers.

Daidzin (Standard) is the analytical standard of Daidzin. This product is intended for research and analytical applications. Daidzin is an isoflavone with antioxidant, anticancer, and antiatherosclerotic activities. Daidzin is a potent and selective inhibitor of mitochondrial ALDH-2. Daidzin reduces ethanol consumption.

Glabridin (Standard) is the analytical standard of Glabridin. This product is intended for research and analytical applications. Glabridin is a natural isoflavan from Glycyrrhiza uralensis, binds to and activates PPARγ, with an EC₅₀ of 6115 nM. Glabridin exhibits antioxidant, anti-bacterial, anti-nephritic, anti-diabetic, anti-fungal, antitumor, anti-inflammatory, antiosteoporotic, cardiovascular protective, neuroprotective and radical scavenging activities.

Hyperoside (Standard) is the analytical standard of Hyperoside. This product is intended for research and analytical applications. Hyperoside is a NF-κB inhibitor, found from Hypericum monogynum. Hyperoside shows anti-tumor, antifungal, anti-inflammatory, anti-viral, and anti-oxidative activities, and can induce apoptosis.

Zearalenone (Standard) is the analytical standard of Zearalenone. This product is intended for research and analytical applications. Zearalenone is a mycotoxin produced mainly by fungi belonging to the genus Fusarium in foods and feeds. Possess oestrogenic activity in pigs, cattle and sheep, with low acute toxicity. Causes precocious development of mammae and other estrogenic effects in young gilts.

Taxifolin (Standard) is the analytical standard of Taxifolin. This product is intended for research and analytical applications. Taxifolin ((+)-Dihydroquercetin) exhibits important anti-tyrosinase activity. Taxifolin exhibits significant inhibitory activity against collagenase with an IC50 value of 193.3 μM. Taxifolin is an important natural compound with antifibrotic activity. Taxifolin is a free radical scavenger with antioxidant capacity.

Isoquercetin (Standard) is the analytical standard of Isoquercetin. This product is intended for research and analytical applications. Isoquercetin (Quercetin 3-glucoside) is a naturally occurring polyphenol that has antioxidant, anti-proliferative, and anti-inflammatory properties. Isoquercetin alleviates ethanol-induced hepatotoxicity, oxidative stress, and inflammatory responses via the Nrf2/ARE antioxidant signaling pathway. Isoquercetin regulates the expression of nitric oxide synthase 2 (NO2) via modulating the nuclear factor-κB (NF-κB) transcription regulation system. Isoquercetin has high bioavailability and low toxicity, is a promising candidate agent to prevent birth defects in diabetic pregnancies.

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

Phloretin (Standard) is the analytical standard of Phloretin. This product is intended for research and analytical applications. Phloretin (NSC 407292; RJC 02792) is a flavonoid extracted from Malus pumila Mill., has anti-inflammatory activities. Phloridzin is a specific, competitive and orally active inhibitor of sodium/glucose cotransporters in the intestine (SGLT1) and kidney (SGLT2). Phloretin inhibits Yeast-made GLUT1 as well as Human erythrocyte GLUT1 with IC₅₀values of 49 μM and 61 μM, respectively.Phloretin has the potential for the treatment of rheumatoid arthritis (RA) and allergic airway inflammation.

Chrysin (Standard) is the analytical standard of Chrysin. This product is intended for research and analytical applications. Chrysin is one of the most well known estrogen blockers.