InChI=1S/C12H14O13/c13-5(14)1-11(24,9(20)21)4-8(19)25-12(10(22)23,2-6(15)16)3-7(17)18/h24H,1-4H2,(H,13,14)(H,15,16)(H,17,18)(H,20,21)(H,22,23)