InChI=1S/C19H26O7S/c1-18-7-5-12-13(15(18)6-8-19(18,20)21)4-3-11-9-17(26-27(22,23)24)16(25-2)10-14(11)12/h9-10,12-13,15,20-21H,3-8H2,1-2H3,(H,22,23,24)/t12?,13?,15?,18-/m0/s1