Procyanidin B5

Procyanidin B5
Names
	IUPAC name [(2R,3R,4S)-Flavan-3,3′,4′,5,7-pentol]-(4→6)-[(2R,3R)-flavan-3,3′,4′,5,7-pentol]
	Systematic IUPAC name (2R,2′R,3R,3′R,4S)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-2H,2′H-[4,6′-bi-1-benzopyran]-3,3′,5,5′,7,7′-hexol
	Other names Procyanidin B5
Identifiers
CAS Number	12798-57-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:75621;
ChEMBL	ChEMBL506487;
ChemSpider	110533;
KEGG	C17640;
PubChem CID	124017;
UNII	W51N19H6K6 ;
CompTox Dashboard (EPA)	DTXSID00155761 ;
	InChI InChI=1S/C30H26O12/c31-13-7-19(36)24-23(8-13)42-30(12-2-4-16(33)18(35)6-12)28(40)26(24)25-20(37)10-22-14(27(25)39)9-21(38)29(41-22)11-1-3-15(32)17(34)5-11/h1-8,10,21,26,28-40H,9H2/t21-,26-,28-,29-,30-/m1/s1 Key: GMISZFQPFDAPGI-CVJZBMGUSA-N; InChI=1/C30H26O12/c31-13-7-19(36)24-23(8-13)42-30(12-2-4-16(33)18(35)6-12)28(40)26(24)25-20(37)10-22-14(27(25)39)9-21(38)29(41-22)11-1-3-15(32)17(34)5-11/h1-8,10,21,26,28-40H,9H2/t21-,26-,28-,29-,30-/m1/s1 Key: GMISZFQPFDAPGI-CVJZBMGUBO;
	SMILES O[C@@H]1Cc2c(O[C@@H]1c1ccc(O)c(O)c1)cc(O)c([C@@H]1[C@@H](O)[C@H](Oc3cc(O)cc(O)c13)c1ccc(O)c(O)c1)c2O;
Properties
Chemical formula	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). verify (what is ?) Infobox references

Procyanidin B5 is a B type proanthocyanidin.

Procyanidin B5 is an epicatechin-(4β → 6)-epicatechin dimer.

Natural occurrences

It can be found in grape seeds,^[1] in Hibiscus cannabinus (kenaf) root and bark,^[2] and in black chokeberries (Aronia melanocarpa).^[3]

Presence in food

It is found in cocoa beans^[4] and chocolate.^[5]

References

^ Ricardo Da Silva, Jorge M.; Rigaud, Jacques; Cheynier, Véronique; Cheminat, Annie; Moutounet, Michel (January 1991). "Procyanidin dimers and trimers from grape seeds". Phytochemistry. 30 (4): 1259–1264. Bibcode:1991PChem..30.1259R. doi:10.1016/S0031-9422(00)95213-0.
^ Van Tkhin', Fam; Makhsudova, B.; Otroshchenko, O. S. (1982). "Dimeric proanthocyanidins ofHibiscus cannabinus". Chemistry of Natural Compounds. 18 (3): 310–314. Bibcode:1982CNatC..18..310V. doi:10.1007/BF00580458.
^ Esatbeyoglu, Tuba; Winterhalter, Peter (2010). "Preparation of Dimeric Procyanidins B1, B2, B5, and B7 from a Polymeric Procyanidin Fraction of Black Chokeberry (Aronia melanocarpa)". Journal of Agricultural and Food Chemistry. 58 (8): 5147–5153. doi:10.1021/jf904354n. PMID 20196608.
^ Esatbeyoglu, Tuba; Wray, Victor; Winterhalter, Peter (2015). "Isolation of dimeric, trimeric, tetrameric and pentameric procyanidins from unroasted cocoa beans (Theobroma cacao L.) using countercurrent chromatography". Food Chemistry. 179: 278–289. doi:10.1016/j.foodchem.2015.01.130. hdl:10033/346408. PMID 25722166.
^ Cooper, Karen A.; Campos-Giménez, Esther; Jiménez Alvarez, Diego; Nagy, Kornél; Donovan, Jennifer L.; Williamson, Gary (2007). "Rapid Reversed Phase Ultra-Performance Liquid Chromatography Analysis of the Major Cocoa Polyphenols and Inter-relationships of Their Concentrations in Chocolate". Journal of Agricultural and Food Chemistry. 55 (8): 2841–2847. doi:10.1021/jf063277c. PMID 17362030.

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[da_Silva-1] Ricardo Da Silva, Jorge M.; Rigaud, Jacques; Cheynier, Véronique; Cheminat, Annie; Moutounet, Michel (January 1991). "Procyanidin dimers and trimers from grape seeds". Phytochemistry. 30 (4): 1259–1264. Bibcode:1991PChem..30.1259R. doi:10.1016/S0031-9422(00)95213-0.

[2] Van Tkhin', Fam; Makhsudova, B.; Otroshchenko, O. S. (1982). "Dimeric proanthocyanidins ofHibiscus cannabinus". Chemistry of Natural Compounds. 18 (3): 310–314. Bibcode:1982CNatC..18..310V. doi:10.1007/BF00580458.

[3] Esatbeyoglu, Tuba; Winterhalter, Peter (2010). "Preparation of Dimeric Procyanidins B1, B2, B5, and B7 from a Polymeric Procyanidin Fraction of Black Chokeberry (Aronia melanocarpa)". Journal of Agricultural and Food Chemistry. 58 (8): 5147–5153. doi:10.1021/jf904354n. PMID 20196608.

[4] Esatbeyoglu, Tuba; Wray, Victor; Winterhalter, Peter (2015). "Isolation of dimeric, trimeric, tetrameric and pentameric procyanidins from unroasted cocoa beans (Theobroma cacao L.) using countercurrent chromatography". Food Chemistry. 179: 278–289. doi:10.1016/j.foodchem.2015.01.130. hdl:10033/346408. PMID 25722166.

[5] Cooper, Karen A.; Campos-Giménez, Esther; Jiménez Alvarez, Diego; Nagy, Kornél; Donovan, Jennifer L.; Williamson, Gary (2007). "Rapid Reversed Phase Ultra-Performance Liquid Chromatography Analysis of the Major Cocoa Polyphenols and Inter-relationships of Their Concentrations in Chocolate". Journal of Agricultural and Food Chemistry. 55 (8): 2841–2847. doi:10.1021/jf063277c. PMID 17362030.

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