(Difference between pages)

Page 1

Page 1Revision 1

Page 2

Page 2Revision 2

Content deleted Content addedVisualWikitext

Revision as of 09:24, 11 April 2011 editGrutness (talk | contribs)Autopatrolled, Administrators316,048 editsmNo edit summary		Latest revision as of 21:33, 6 May 2023 edit LegionMammal978 (talk | contribs)Extended confirmed users7,894 edits add semisystematic name
Line 1:		Line 1:
	{{chembox		{{chembox
		⚫	| verifiedrevid = 423484890
	| Watchedfields = changed
		⚫	| Name = Procyanidin B2
⚫	| verifiedrevid = 410666400
		⚫	| Reference =
	| Name = Proanthocyanidin B2
			| ImageFile = Structure_of_Procyanidin_B2.png
⚫	| Reference =
		⚫	| ImageName = Chemical structure of procyanidin B2
⚫	| ImageFile = Procyanidin B2.svg
		⚫	| ImageSize = 200px
⚫	| ImageName = Chemical structure of proanthocyanidin B2
			| IUPACName = -(4→8)-
⚫	| ImageSize = 200px
			| SystematicName = (2''R'',2′''R'',3''R'',3′''R'',4''R'')-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro-2''H'',2′''H''--3,3′,5,5′,7,7′-hexol
	| IUPACName =
	| OtherNames = Procyanidin-B2<br>(−)-]-(4β→8)-(−)-epicatechin		| OtherNames = Procyanidin-B2<br>(−)-]-(4β→8)-(−)-epicatechin
	| Section1= {{Chembox Identifiers		|Section1={{Chembox Identifiers
	| CASNo = 29106-49-8		| CASNo = 29106-49-8
	| CASOther =		| CASNoOther =
			| CASNo_Ref = {{cascite|correct|CAS}}
⚫	| PubChem = 122738
			| UNII_Ref = {{fdacite|correct|FDA}}
	| SMILES =
			| UNII = L88HKE854X
		⚫	| PubChem = 122738
			| ChEBI = 75632
			| SMILES = O1Cc2c(O)cc(O)c(3(O)(Oc4cc(O)cc(O)c34)c3ccc(O)c(O)c3)c2O1c1ccc(O)c(O)c1
			| ChemSpiderID = 109417
			| StdInChI = 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
			| StdInChIKey = XFZJEEAOWLFHDH-NFJBMHMQSA-N
	}}		}}
	|Section2= {{Chembox Properties		|Section2={{Chembox Properties
	| Formula = C<sub>30</sub>H<sub>26</sub>O<sub>12</sub>		| Formula = C<sub>30</sub>H<sub>26</sub>O<sub>12</sub>
	| MolarMass = 578.52 g/mol		| MolarMass = 578.52 g/mol
			| Appearance=
	| ExactMass = 578.142426 u
	| Appearance=		| Density=
	| Density=		| MeltingPtC=
	| MeltingPtC=		| BoilingPt=
	| BoilingPt=		| Solubility=
	| Solubility=
	}}		}}
	|Section3= {{Chembox Hazards		|Section3={{Chembox Hazards
	| MainHazards=		| MainHazards=
	| FlashPt=		| FlashPt=
			| AutoignitionPt =
	| Autoignition=
	}}		}}
	}}		}}
	'''Proanthocyanidin B2''' is a ] ((−)-]-(4β→8)-(−)-epicatechin).		'''Procyanidin B2''' is a ]. Its structure is (−)-]-(4β→8)-(−)-epicatechin.
		⚫	Procyanidin B2 can be found in '']'' (Chinchona: in the rind, bark, and cortex), in '']'' (Ceylon cinnamon: in the rind, bark, and cortex), in '']'' (Common hawthorn: in the flower and blossom), in '']'' (Cat's claw: in the root), in '']'' (Common grape vine: in the leaf),<ref></ref> in '']'' (litchi: in the pericarp),<ref name="Mouming"></ref> in the ],<ref></ref> and in '']''.<ref name="Lie-Chwen">{{cite journal|doi=10.1021/np010414l | volume=65 | issue=4 | title=Immunomodulatory Proanthocyanidins from Ecdysanthera u tilis | year=2002 | journal=Journal of Natural Products | pages=505–508 | vauthors=Lin LC | pmid=11975489}}</ref>
			Procyanidin B2 can be converted into ] by radical oxidation using ] (DPPH) radicals under neutral conditions.<ref>{{cite journal | doi = 10.1016/S0040-4039(99)02097-3 | volume=41 | title=Conversion of procyanidin B-type (catechin dimer) to A-type: evidence for abstraction of C-2 hydrogen in catechin during radical oxidation | year=2000 | journal=Tetrahedron Letters | pages=485–488 | vauthors=Kondo K| issue=4 }}</ref>
		⚫	Procyanidin B2 has been shown to inhibit the formation of the ]s ], ]&nbsp;(CML), and ]&nbsp;(MGO).<ref>{{cite journal |vauthors=Peng X, Ma J, Chao J, Sun Z, Chang RC, Tse I, Li ET, Chen F, Wang M | title=Beneficial effects of cinnamon proanthocyanidins on the formation of specific advanced glycation endproducts and methylglyoxal-induced impairment on glucose consumption| journal= Journal of Agricultural and Food Chemistry | volume=58 | issue=11 | year=2010 | pages=6692–6696 | pmid=20476737 | doi=10.1021/jf100538t}}</ref>
			== See also ==
⚫	Proanthocyanidin B2 can be found in '']'' (Chinchona, in the rind, bark and cortex), in '']'' (Ceylon cinnamon, in the rind, bark and cortex), in '']'' (Common hawthorn, in the flower and blossom), in '']'' (Cat's claw, in the root), in '']'' (Common grape vine, in the leaf)<ref></ref>, in '']'' (litchi, in the pericarp)<ref name="Mouming"></ref>, in the ]<ref></ref>, and in '']''<ref name="Lie-Chwen"></ref>.
			* ]
		⚫	== References ==
⚫	Proanthocyanidin B2 has been shown to inhibit the formation of the ]s ], ]&nbsp;(CML), and ]&nbsp;(MGO).<ref>{{cite journal | author=Peng X, Ma J, Chao J, Sun Z, Chang RC, Tse I, Li ET, Chen F, Wang M | title=Beneficial effects of cinnamon proanthocyanidins on the formation of specific advanced glycation endproducts and methylglyoxal-induced impairment on glucose consumption| journal= JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | volume=58 | issue=11 | year=2010 | pages=6692–6696 | id= | pmid=20476737}}</ref>
		⚫	{{reflist|2}}
			{{procyanidin}}
⚫	==References==
⚫	{{reflist}}
		⚫	]
	{{proanthocyanidin}}
⚫	]
	{{Natural-phenol-stub}}		{{Aromatic-stub}}