(mycology) A ketone pigment produced by Xerocomus badius with SMILES C1=CC(=CC=C1/C(=C\2/C(=C(C(=O)O2)C3=CC4=C5C(=C3)C(=O)C(=O)OC5=C(C=C4C6=C(/C(=C(/C7=CC=C(C=C7)O)\C(=O)O)/OC6=O)O)O)O)/C(=O)O)O