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Supelco

Procyanidin B2

analytical standard

Sinonimo/i:

(−)-Epicatechin (4β-8)-(−)-epicatechin, 4,8″-Bi-[(+)-epicatechin], cis,cis″-4,8″-Bi(3,3′,4′,5,7-pentahydroxyflavane), Proanthocyanidin B2

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1 MG
215,00 €

215,00 €

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1 MG
215,00 €

About This Item

Formula empirica (notazione di Hill):
C30H26O12
Numero CAS:
29106-49-8
Peso molecolare:
578.52
Numero MDL:
MFCD01861513
Codice UNSPSC:
85151701
ID PubChem:
329756197
NACRES:
NA.24

215,00 €

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Grado

analytical standard

Livello qualitativo

100

Saggio

≥90% (HPLC)

tecniche

HPLC: suitable
gas chromatography (GC): suitable

applicazioni

food and beverages

Formato

neat

Temperatura di conservazione

2-8°C

Stringa SMILE

O[C@@H]1Cc2c(O)cc(O)c([C@@H]3[C@@H](O)[C@H](Oc4cc(O)cc(O)c34)c5ccc(O)c(O)c5)c2O[C@@H]1c6ccc(O)c(O)c6

InChI

1S/C30H26O12/c31-13-7-20(37)24-23(8-13)41-29(12-2-4-16(33)19(36)6-12)27(40)26(24)25-21(38)10-17(34)14-9-22(39)28(42-30(14)25)11-1-3-15(32)18(35)5-11/h1-8,10,22,26-29,31-40H,9H2/t22-,26-,27-,28-,29-/m1/s1
XFZJEEAOWLFHDH-NFJBMHMQSA-N

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Categorie correlate

Descrizione generale

Procyanidin B2 is a B type of proanthocyanidin, that is present in plants, especially in grape seeds, apples and cacao seeds[1], which is known to possess anti-inflammatory properties and antioxidant properties.[2]

Applicazioni

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Confezionamento

Bottomless glass bottle. Contents are inside inserted fused cone.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
WXBF1788V
BCCK0997
BCCH6360
BCCF7520
BCBZ9111

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Cinnamtannin A2 phyproof® Reference Substance

PHL83372

Cinnamtannin A2

USP

USP

1539803

Maritime pine extract

(−)-Epicatechin ≥98% (HPLC), from green tea

Sigma-Aldrich

E4018

(−)-Epicatechin

Digalactosyl diglyceride ≥93% (TLC), from whole wheat flour, lyophilized powder

Sigma-Aldrich

D4651

Digalactosyl diglyceride

(−)-Epicatechin ≥90% (HPLC)

Sigma-Aldrich

E1753

(−)-Epicatechin

(+)-Catechin analytical standard

Supelco

43412

(+)-Catechin

Epicatechin primary reference standard

03940590

Epicatechin

Nabeelah Bibi Sadeer et al.
Journal of pharmaceutical and biomedical analysis, 174, 19-33 (2019-06-04)
Africa is famous for its floral biodiversity, exploited by local people for therapeutic purposes. However, such plants need to be scrutinised scientifically for the presence of bioactive compounds and possible biological properties. This study attempts for the first time to
Stavroula Stoupi et al.
Molecular nutrition & food research, 54(6), 747-759 (2009-11-28)
The catabolism by human faecal microbiota of (-)-epicatechin (1) (2, 3-cis stereochemistry) and its dimer pure procyanidin B2 (2), has been compared using a static in vitro culture model. The catabolites were characterised by LC-MS(n), UV absorption and relative retention
Javier I Ottaviani et al.
The American journal of clinical nutrition, 95(4), 851-858 (2012-03-02)
Accumulating data show a causal role for flavanols in the mediation of cardiovascular benefits associated with the consumption of flavanol- and procyanidin-containing foods. Evidence for a direct causal role for procyanidins in this context is far less profound due to
Stavroula Stoupi et al.
Drug metabolism and disposition: the biological fate of chemicals, 38(2), 287-291 (2009-11-17)
Procyanidins are important biologically active compounds, but the pathway and extent of absorption and metabolism are controversial. We conducted a mass balance study to evaluate the total radioactivity excreted in urine and feces after oral administration of [(14)C]procyanidin B2 to
Daniela Rossin et al.
Antioxidants (Basel, Switzerland), 8(6) (2019-06-04)
Exaggerated Toll-like receptor (TLR)-mediated immune and inflammatory responses play a role in inflammatory bowel diseases. This report deals with the ability of a mixture of oxysterols widely present in cholesterol-rich foods to induce in vitro intestinal inflammation through TLR up-regulation.
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Articoli

Dietary Antioxidants

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

Protocolli

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HPLC Analysis of Polyphenols in Nero d'Avola Red Wine on Discovery® HS C18 (UV 280 nm)

Domande

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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