:Pinobanksin
{{Refimprove|date=January 2007}}
{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 464207049
| ImageFile = Pinobanksin.svg
| ImageClass = skin-invert-image
| ImageSize = 250px
| IUPACName = (2R,3R)-3,5,7-Trihydroxyflavan-4-one
| SystematicName = (2R,3R)-3,5,7-Trihydroxy-2-phenyl-2,3-dihydro-4H-1-benzopyran-4-one
| OtherNames = 3,5,7-trihydroxy-2-phenyl-2,3-dihydro-4H-chromen-4-one
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 65962
| InChI = 1/C15H12O5/c16-9-6-10(17)12-11(7-9)20-15(14(19)13(12)18)8-4-2-1-3-5-8/h1-7,14-17,19H/t14-,15+/m0/s1
| InChIKey = SUYJZKRQHBQNCA-LSDHHAIUBG
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C15H12O5/c16-9-6-10(17)12-11(7-9)20-15(14(19)13(12)18)8-4-2-1-3-5-8/h1-7,14-17,19H/t14-,15+/m0/s1
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = SUYJZKRQHBQNCA-LSDHHAIUSA-N
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo= 548-82-3
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = BK3ABR33DT
| ChEBI_Ref = {{ebicite|changed|EBI}}
| ChEBI = 28103
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 608410
| PubChem= 73202
| KEGG= C09826
| SMILES = O=C2c3c(O[C@H](c1ccccc1)[C@H]2O)cc(O)cc3O
}}
|Section2={{Chembox Properties
| Formula=C15H12O5
| MolarMass= 272.25 g/mol
| Appearance=
| Density= 1.497 g/mL
| MeltingPt=
| BoilingPt=
| Solubility=
}}
|Section3={{Chembox Hazards
| MainHazards=
| FlashPt=
| AutoignitionPt =
}}
}}
Pinobanksin is an antioxidant bioflavonoid (specifically a flavanonol, a category of flavonol) that inhibits peroxidation of low density lipoprotein and it has electron donor properties reducing alpha-tocopherol radicals.{{cn|date=May 2013}} It is present in sunflower honey.{{cite journal | doi = 10.1111/j.1365-2621.1992.tb08094.x | title = Identification of Flavonoids in Sunflower Honey | year = 1992 | last1 = Sabatier | first1 = S. | last2 = Amiot | first2 = M.J. | last3 = Tacchini | first3 = M. | last4 = Aubert | first4 = S. | journal = Journal of Food Science | volume = 57 | issue = 3 | pages = 773}}
Pinobanksin is biosynthesized from pinocembrin.
References
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