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Cyclovariegatin

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Cyclovariegatin
Names
IUPAC name 4-(1,2,4,7,8-Pentahydroxydibenzofuran-3-yl)cyclohexa-3,5-diene-1,2-dione
Identifiers
CAS Number
3D model (JSmol)
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C18H10O8/c19-8-2-1-6(3-9(8)20)13-15(23)16(24)14-7-4-10(21)11(22)5-12(7)26-18(14)17(13)25/h1-5,21-25HKey: OBXJPYUGUFLTRB-UHFFFAOYSA-N
SMILES
  • C1=CC(=O)C(=O)C=C1C2=C(C3=C(C4=CC(=C(C=C4O3)O)O)C(=C2O)O)O
Properties
Chemical formula C18H10O8
Molar mass 354.270 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Cyclovariegatin is a pigment. Its chemical name is 1,4-dihydro-2,7,8-trihydroxy-3-(3,4-dihydroxyphenyl)-l,4-dioxodibenzofuran. It is distinguishable by its UV-Vis spectra with maxima at 257, 296, and 430 nm. The variants cyclovariegatin-pentaacetate, cyclovariegatin-2,3',8-triacetate, and cyclovariegatin-2-acetate have also been described. It is derived from atromentin. It has been isolated from the browned skin of Suillus grevillei var. badius, and becomes the pigment thelephoric acid.

See also

References

  1. Yannai, Shmuel (2003). Dictionary of Food Compounds with CD-ROM: Additives, Flavors, and Ingredients. CRC Press. ISBN 9781420068450.
  2. Gill, M., and Steglich, W. (1987) Pigments of fungi (Macromycetes). Prog Chem Org Nat Prod 51: 1–317.
  3. Elisabeth Jägers, Elisabeth Hillen-Maske, Holger Schmidt, Wolfgang Steglich und Egon Horakb. Pilzfarbstoffe, 55 Acetylierte Terphenylchinon-Derivate aus Anthracophyllum -Arten (Agaricales)Z. Naturforsch. 42b, 1354—1360 (1987); eingegangen am 30. März 1987
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