InChI=1S/C19H22O7S/c1-5-19(4,11-25-27(22,23)24)15-9-14-8-13(7-6-12(2)3)16(20)10-17(14)26-18(15)21/h5-6,8-10,20H,1,7,11H2,2-4H3,(H,22,23,24)