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