Luteic acid

Luteic acid

Names
IUPAC name 3,4,8,9,10-pentahydroxy-6-oxobenzo[c]chromene-1-carboxylic acid
Other names Luteolic acid
Identifiers
CAS Number	476-67-5
3D model (JSmol)	Interactive image
ChemSpider	4477499
PubChem CID	5319108
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 [77 °F], 100 kPa).
Infobox references

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.