InChI=1/C16H14O5S2/c1-16(18)14(10-3-5-12(6-4-10)23(2,19)20)13(15(17)21-16)11-7-8-22-9-11/h3-9,18H,1-2H3/t16-/m1/s1 BF5E5273BBBB6EF7