Isoxerocomic acid

Isoxerocomic acid
Names
Preferred IUPAC name
(E)-(3,4-Dihydroxyphenyl)[3-hydroxy-4-(4-hydroxyphenyl)-5-oxofuran-2(5H)-ylidene]acetic acid
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C18H12O8/c19-10-4-1-8(2-5-10)13-15(22)16(26-18(13)25)14(17(23)24)9-3-6-11(20)12(21)7-9/h1-7,19-22H,(H,23,24)/b16-14+
    Key: LTTYWERVHIDGQN-JQIJEIRASA-N
  • OC(=O)C(=C1\OC(=O)C(=C1O)C1=CC=C(O)C=C1)\C1=CC=C(O)C(O)=C1
Properties
C18H12O8
Molar mass 356.2831
Melting point 295 °C (563 °F; 568 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Isoxerocomic acid is a red-orange pigment found in Boletales. It is the precursor to variegatic acid, and is preceded by atromentic acid and atromentin. As an example, it is isolated from Serpula lacrymans. It is soluble in methanol. It is the isomer of xerocomic acid and precursor to xerocomorubin.

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