InChI=1S/C12H14O13/c13-5(14)1-4(9(20)21)8(19)10(22)25-12(11(23)24,2-6(15)16)3-7(17)18/h4,8,19H,1-3H2,(H,13,14)(H,15,16)(H,17,18)(H,20,21)(H,23,24)