Catéchine

(-)-Epiafzelechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

Procyanidin B3 analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

Procyanidin B2 analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

(-) Catechin gallate analytical standard provided with w/w absolute assay, to be used for quantitative titration.

(+)-Catechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

(-)-Epicatechin gallate analytical standard provided with w/w absolute assay, to be used for quantitative titration.

(-)-Epicatechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

(+)-Gallocatechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

Procyanidin A2 analytical standard provided with w/w absolute assay, to be used for quantitative titration.

Procyanidin B1 analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

(-)-Epigallocatechin gallate analytical standard provided with w/w absolute assay, to be used for quantitative titration.

Procyanidin C1 analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

(-)-Gallocatechin gallate analytical standard provided with w/w absolute assay, to be used for quantitative titration.

Procyanidin A1 analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

(+)-Gallocatechin gallate analytical standard provided with chromatographic purity, to be used as reference material for qualitative determination.

(-)-Epigallocatechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

(-) Gallocatechin analytical standard provided with w/w absolute assay, to be used for quantitative titration.

<p>Tea polyphenol, also called green tea extract, are a mixture of chemical compounds, such as flavanoids and tannins, found naturally in tea.</p>

<p>(+)-Catechin pentaacetate (Catechin pentaacetate) is an esterified derivative of catechin, which reduces iron and zinc transport proteins in the duodenum.</p>

<p>(+)-Epicatechin (Dexepicatechin) is a natural product and an antioxidant agent.</p>

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

Oxygen-heterocyclic compound

<p>Applications (+/-)-Catechin xHydrate is an antioxidant flavonoid.<br>References Liao, J. et al.: J. Agri. Food. Chem., 65, 3013 (2017);<br></p>

<p>Stability Light Sensitive<br>Applications One of the catechin isomers and a potent antioxidant that can modulate a wide range of membrane proteins. Its bilayer-modifying potency was tested using gramicidin A (gA) channels as probes. All the catechins alter gA channel function and modify bilayer properties, with a 500-fold range in potency. The gallate group causes current block, as evident by brief downward current transitions.<br>References Ingolfsson, H., et al.: FEBS Lett., 585, 3101 (2011),<br></p>

<p>(+)-Catechin hydrate is a chiral flavonoid, which is a type of natural polyphenol compound. It is primarily sourced from various plants, including tea leaves, cocoa, and certain fruits. As an integral component of the flavonoid group, (+)-Catechin hydrate exhibits strong antioxidant activity, primarily through its ability to scavenge free radicals and chelate metal ions, thereby mitigating oxidative stress within biological systems.</p>

<p>Procyanidin B3 is a flavonoid compound, which is a type of plant-derived polyphenol, sourced primarily from the seeds and skins of various fruits, especially grapes and apples. It functions primarily through strong antioxidant activity, neutralizing free radicals and reducing oxidative stress. This mode of action is fundamental to its potential therapeutic effects, as oxidative stress is a contributor to numerous chronic diseases.</p>

<p>Procyanidin B1 is a polyphenolic compound, which is a type of naturally occurring organic compound. It is primarily sourced from various plants, including grape seeds, apples, and cocoa. This compound is a proanthocyanidin, specifically a type of flavonoid, and is often found in the skins, seeds, and leaves of these plants.</p>

<p>(+)-Gallocatechin gallate is a polyphenolic compound, which is a specific type of catechin predominantly derived from green tea leaves, Camellia sinensis. It belongs to the flavonoid class of phytochemicals, known for their diverse biological activities. The compound exhibits potent antioxidant properties by scavenging free radicals and chelating metal ions, thereby reducing oxidative stress. It also modulates various signaling pathways involved in inflammation and cell proliferation.</p>

<p>(-)-Epicatechin is a flavonoid compound, which is a type of polyphenol that can be found in various natural sources such as cacao beans, green tea, and certain fruits. Structurally, it belongs to the class of catechins and is known for its antioxidant properties.</p>

<p>(-)-Gallocatechin gallate is a flavonoid compound, specifically a type of catechin, which is a phytochemical sourced primarily from tea plants, particularly green tea leaves. This compound is structurally characterized by its polyphenolic framework, which significantly contributes to its biological activity.</p>

<p>Procyanidin B4 is a type of proanthocyanidin, which is a class of flavonoids. This compound is predominantly derived from various plant sources, notably grape seeds and certain fruits like apples. Its mode of action is primarily through its antioxidant properties, which involve scavenging free radicals and reducing oxidative stress at the cellular level. Procyanidin B4 operates by stabilizing free radicals with its phenolic hydroxyl groups, thereby inhibiting lipid peroxidation and protecting cellular components such as DNA, proteins, and lipids from oxidative damage.</p>

<p>Procyanidin B2 is a type of polyphenol, specifically a flavonoid compound, which is derived from plant sources such as grape seeds, apples, and cacao beans. This compound is characterized by its dimeric structure, consisting of two epicatechin units linked through a specific bond. The mode of action of Procyanidin B2 involves its function as a potent antioxidant, which allows it to neutralize free radicals and reduce oxidative stress at the cellular level. Additionally, it influences various signaling pathways, modulating enzyme activity and gene expression related to inflammation and cell survival.</p>

<p>Procyanidin A2 is a type of flavonoid, which is a class of bioactive compounds extracted primarily from various plant sources such as grape seeds, cranberries, and cocoa. These compounds are known for their complex molecular structures that include oligomeric catechins. Procyanidin A2 exerts its effects by modulating oxidative stress pathways through its potent antioxidant activity. It neutralizes free radicals, thus protecting cellular components from damage and potentially ameliorating oxidative stress-related conditions.</p>

<p>(+)-Catechin is a type of polyphenolic compound, specifically a flavan-3-ol, which is a member of the broader class of flavonoids. It is derived from natural sources, predominantly found in a variety of plants such as tea leaves, cocoa, berries, and certain fruits. The compound plays a significant role as a natural antioxidant, combating oxidative stress by scavenging free radicals and chelating metal ions.</p>

<p>(-)-Catechin is a flavonoid compound, classified as a polyphenolic antioxidant, which is predominantly derived from plant sources such as tea leaves, cocoa, and various fruits. Its molecular structure allows it to scavenge free radicals and chelate metal ions, exhibiting potent antioxidant properties. This reactive nature contributes to its ability to modulate signaling pathways and inhibit enzymatic activities related to oxidative stress and inflammation.</p>

<p>(-)-Epigallocatechin is a polyphenolic compound, which is a type of catechin, primarily found in the tea plant, Camellia sinensis. This compound is abundant in green tea leaves and is recognized for its potent antioxidant properties. The source of (-)-Epigallocatechin can be traced back to the biosynthesis pathway in plants, where it contributes to the plant's defense mechanisms against environmental stressors.</p>

<p>Epicatechin-(2beta-&gt;5,4beta-&gt;6)-ent-epicatechin is a type of flavonoid dimer, which is derived from natural plant sources, particularly in some fruits and nuts known for their rich polyphenolic content. This compound belongs to the class of procyanidins, which are well-known for their potent antioxidant properties.</p>

<p>(-)-Epicatechin gallate is a type of catechin, which is a polyphenolic compound primarily sourced from green tea leaves. This compound is known for its potent antioxidant properties, which effectively neutralize free radicals, thereby reducing oxidative stress and potentially preventing cellular damage.</p>

<p>(-)-Gallocatechin is a type of flavan-3-ol, specifically a catechin, which is a subtype of polyphenol. This compound is naturally sourced from various plants, particularly abundant in green tea leaves. It is part of the broader catechin family, known for possessing potent antioxidant potential.</p>

<p>Catechin 7,4'-di-O-gallate is a naturally occurring flavonoid compound, which is derived from various plants, particularly those rich in catechins, such as tea leaves and certain fruits. As a member of the polyphenol class, it is known for its powerful antioxidant properties, which enable it to neutralize free radicals and mitigate oxidative stress. Additionally, its structure allows for strong anti-inflammatory effects by modulating signaling pathways and inhibiting the production of inflammatory mediators.</p>

<p>Epigallocatechin gallate, also known as EGCG, is a flavonoid that provides antioxidant properties to plants. It also inhibits telomerase, and enzyme that elongates chromosomes, and DNA methyltransferase, that transfers a methyl group to cytosine in the DNA chain.</p>

<p>(±)-Catechin is a type of flavonoid, a class of compounds known for their diverse range of biological activities. It is primarily sourced from a variety of plants, including tea leaves, cocoa, and certain fruits, where it exists as a natural antioxidant. The mode of action of (±)-catechin involves scavenging free radicals, thereby protecting cells from oxidative stress and potential damage. This protective mechanism is largely attributed to its polyphenolic structure, allowing it to neutralize reactive oxygen species (ROS).</p>

<p>3'-O-Methylcatechin is a naturally occurring flavonoid, which is derived from various plant sources, such as tea and certain fruits. It belongs to the class of compounds known as catechins, which are polyphenolic compounds widely recognized for their beneficial health effects. The methylation at the 3' position distinguishes it from other catechins, potentially influencing its bioavailability and biochemical activity.</p>

<p>Epigallocatechin gallate, also known as EGCG, is a flavonoid that provides antioxidant properties to plants. It also inhibits telomerase, and enzyme that elongates chromosomes, and DNA methyltransferase, that transfers a methyl group to cytosine in the DNA chain.</p>

<p>(-)-Gallocatechin 3-(4''-O-methyl)gallate is a naturally occurring flavonoid, which is a type of polyphenolic compound. It is derived from plant sources, specifically found in certain teas and other botanical products. This compound exhibits its mode of action primarily through its antioxidant properties, where it scavenges free radicals and inhibits oxidative stress, thereby protecting cellular systems from damage.</p>

<p>(+)-Gallocatechin is a flavonoid, which is a type of polyphenol compound, naturally found in a variety of plant sources such as tea leaves, cocoa, and certain fruits. It is structurally related to other catechins, sharing similar properties and biological activities. As an antioxidant, (+)-Gallocatechin acts by scavenging free radicals, thereby inhibiting oxidative stress—a process linked to various chronic diseases and aging.</p>