Hexahydroxydiphenic acid

Hexahydroxydiphenic acid is an organic compound with the formula [(HO)3C6HCO2H]2. It is the oxidatively coupled derivative of gallic acid It is a white solid, although samples are typically brown owing to oxidation.

Hexahydroxydiphenic acid
Names
Preferred IUPAC name
4,4′,5,5′,6,6′-Hexahydroxy[1,1′-biphenyl]-2,2′-dicarboxylic acid
Other names
HHDP
3,4,5,3′,4′,5′-Hexahydroxydiphenate
3,4,5,3′,4′,5′-Hexahydroxydiphenic acid
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
  • InChI=1S/C14H10O10/c15-5-1-3(13(21)22)7(11(19)9(5)17)8-4(14(23)24)2-6(16)10(18)12(8)20/h1-2,15-20H,(H,21,22)(H,23,24) N
    Key: MFTSECOLKFLUSD-UHFFFAOYSA-N N
  • InChI=1/C14H10O10/c15-5-1-3(13(21)22)7(11(19)9(5)17)8-4(14(23)24)2-6(16)10(18)12(8)20/h1-2,15-20H,(H,21,22)(H,23,24)
    Key: MFTSECOLKFLUSD-UHFFFAOYAZ
SMILES
  • O=C(O)c2cc(O)c(O)c(O)c2c1c(O)c(O)c(O)cc1C(=O)O
Properties
C14H10O10
Molar mass 338.224 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Hexahydroxydiphenic acid is a component of some ellagitannins, such as casuarictin. Luteic acid is the monolactone and ellagic acid is the dilactone of hexahydroxydiphenic acid.

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