InChI=1S/C15H14O10S/c1-15(19)14(25-26(20,21)22)13(18)11-9(24-15)4-6-3-7(16)5-8(23-2)10(6)12(11)17/h3-5,14,16-17,19H,1-2H3,(H,20,21,22)