InChI=1S/C19H28O7S/c1-18-11(6-13(8-17(18)22)26-27(23,24)25)2-3-14-15(18)4-5-19(10-20)9-12(21)7-16(14)19/h8,11-12,14-16,20-21H,2-7,9-10H2,1H3,(H,23,24,25)/t11?,12?,14?,15?,16?,18-,19+/m0/s1