InChI=1S/C15H18O10/c16-7(13(20)21)5-6-3-1-2-4-8(6)24-15-11(19)9(17)10(18)12(25-15)14(22)23/h1-4,7,9-12,15-19H,5H2,(H,20,21)(H,22,23)