InChI=1S/C13H12O13/c14-2-1-3(10(18)19)24-9(12(22)23)7(2)25-13-6(17)4(15)5(16)8(26-13)11(20)21/h1,4-6,8,13,15-17H,(H,18,19)(H,20,21)(H,22,23)