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Luteic acid

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Luteic acid
Luteic acid
Names
Preferred IUPAC name 3,4,8,9,10-Pentahydroxy-6-oxo-6H-dibenzopyran-1-carboxylic acid
Other names Luteolic acid
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C14H8O9/c15-5-2-4-7(11(19)9(5)17)8-3(13(20)21)1-6(16)10(18)12(8)23-14(4)22/h1-2,15-19H,(H,20,21)Key: FLZGFQFYDGHWLR-UHFFFAOYSA-N
  • InChI=1/C14H8O9/c15-5-2-4-7(11(19)9(5)17)8-3(13(20)21)1-6(16)10(18)12(8)23-14(4)22/h1-2,15-19H,(H,20,21)Key: FLZGFQFYDGHWLR-UHFFFAOYAI
SMILES
  • C1=C2C(=C(C(=C1O)O)O)C3=C(C(=C(C=C3C(=O)O)O)O)OC2=O
Properties
Chemical formula C14H8O9
Molar mass 320.21 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Luteic acid is a natural phenol found in numerous fruits. It is a monolactonized tergalloyl group. Maximilian Nierenstein showed in 1945 that luteic acid was a molecule present in the myrobalanitannin, a tannin found in the fruit of Terminalia chebula and is an intermediary compound in the synthesis of ellagic acid. It can form from hexahydroxydiphenic acid. It is also present in the structure of the tannins alnusiin and bicornin.

References

  1. Nierenstein, M.; Potter, J. (1945). "The distribution of myrobalanitannin". The Biochemical Journal. 39 (5): 390–392. doi:10.1042/bj0390390. PMC 1258254. PMID 16747927.
  2. Structures of alnusiin and bicornin, new hydrolyzable tannins having a monolactonized tergalloyl group. Yoshida T, Yazaki K, Memon M.U, Maruyama I, Kurokawa K, Shingu T and Okuda T, Chemical and pharmaceutical bulletin, 1989, volume 37, number 10, pages 2655-2660, INIST 19467830 (abstract)
Types of ellagitannins
Moieties
Lactones
Monomers
C-glycosidic ellagitannins
Dehydroellagitannins (molecules with
dehydrohexahydroxydiphenic acid (DHHDP)
Transformed ellagitannins
molecules with chebulic acid
molecules with Elaeocarpusinic acid
Oligomers
Dimers
Agrimoniin
Cornusiin E (dimer of tellimagrandin II)
Lambertianin A and B
Nobotanin B
Roburin A, B, C and D
Sanguiin H-6
Trimers
Lambertianin C
Raspberry ellagitannin
Tetramers
Lambertianin D
Nobotanin S
Pentamer
Melastoflorin A
Other
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