Procyanidin B4 is a B type proanthocyanidin.
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| IUPAC name
[(2R,3S,4S)-Flavan-3,3′,4′,5,7-pentol]-(4→8)-[(2R,3R)-flavan-3,3′,4′,5,7-pentol]
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| Systematic IUPAC name
(2R,2′R,3S,3′R,4S)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-2H,2′H-[4,8′-bi-1-benzopyran]-3,3′,5,5′,7,7′-hexol | |
| Other names
Procyanidin B4
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| Identifiers | |
3D model (JSmol)
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| ChEMBL | |
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| KEGG | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C30H26O12 | |
| Molar mass | 578.52 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Procyanidin-B4 is a catechin-(4α→8)-epicatechin dimer. It is found in the litchi pericarp,[1] in grape seeds,[2] and, along with 4-cis-isomer of procyanidin B4, in beer.[3]
See also
editReferences
edit- ^ Immunomodulatory and anticancer activities of flavonoids extracted from litchi (Litchi chinensis Sonn.) pericarp. Mouming Zhao; Bao Yang; Jinshui Wang; Yang Liu; Limei Yu; Yueming Jiang, 2007
- ^ Du, Yu; Lou, Hongxiang (4 September 2008). "Catechin and proanthocyanidin B4 from grape seeds prevent doxorubicin-induced toxicity in cardiomyocytes". European Journal of Pharmacology. 591 (1): 96–101. doi:10.1016/j.ejphar.2008.06.068. PMID 18611398.
- ^ Structure elucidation of proanthocyanidins: Direct synthesis and isolation from Pilsener beer. Jan Delcour, 1985 Archived 2011-07-06 at the Wayback Machine
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