InChI=1/C15H16N2O3S/c18-14(5-6-21)17-8-12-10(7-13(17)15(19)20)9-3-1-2-4-11(9)16-12/h1-4,13,16,21H,5-8H2,(H,19,20)/p-1/t13-/m1/s1/fC15H15N2O3S/q-1 2AFB864A661B34E3