InChI=1/C21H22O5S/c1-13(2)14-5-7-15(8-6-14)18-19(21(3,23)26-20(18)22)16-9-11-17(12-10-16)27(4,24)25/h5-13,23H,1-4H3/t21-/m1/s1 547955FC5A0E96B8