Variegatorubin

Variegatorubin
Identifiers
3D model (JSmol)	Interactive image;
CompTox Dashboard (EPA)	DTXSID201045790 ;
	InChI InChI=1S/C18H10O9/c19-8-2-1-6(3-9(8)20)13-15(23)16(27-17(13)24)14-7-4-10(21)11(22)5-12(7)26-18(14)25/h1-5,19-23H/b16-14- Key: UMIYSJROYJXHSW-PEZBUJJGSA-N;
	SMILES OC=1C=C(C=CC=1O)C=2C(=O)O/C(C=2O)=C3\C(=O)OC=4C=C(O)C(O)=CC3=4;
Properties
Chemical formula	C18H10O9
Molar mass	370.267
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Variegatorubin is a pulvinic acid derivative. It is a red pigment that is present in many members of the Boletales, an order of the division Basidiomycota. It is generated from the oxidation of variegatic acid. Bolete species that contain variegatorubin include Neoboletus luridiformis, Chalciporus piperatus, Rhizopogon roseolus, Exsudoporus frostii, Suillellus luridus, Rubroboletus rhodoxanthus, and R. satanas.^[1] Variegatorubin was discovered by Wolfgang Steglich and colleagues, and described as a new compound in 1970.^[2]

References

^ Gill, M.; Steglich, W. (2012). Pigments of Fungi (Macromycetes). Progress in the Chemistry of Organic Natural Products. Vol. 51. Springer Science & Business Media. pp. 1–297 (see p. 35). ISBN 978-3-7091-6971-1.{{cite book}}: CS1 maint: multiple names: authors list (link)
^ Steglich, W.; Furtner, W.; Prox, A. (1970). "Variegatorubin, an oxidation product of variegatic acid from Suillus piperatus (Bull. ex Fr.) O. Kuntze and other Boletaceae". Zeitschrift für Naturforschung B. 5: 557.{{cite journal}}: CS1 maint: multiple names: authors list (link)