InChI=1S/C19H22O7S/c20-16-7-1-14(2-8-16)3-9-17(21)13-18(22)10-4-15-5-11-19(12-6-15)26-27(23,24)25/h1-2,5-8,11-12,18,20,22H,3-4,9-10,13H2,(H,23,24,25)