InChI=1/C18H17NO4S/c1-12-3-5-14(6-4-12)17-16(11-23-18(17)20)13-7-9-15(10-8-13)19-24(2,21)22/h3-10H,11H2,1-2H3,(H,19,20)/p-1/fC18H16NO4S/q-1 C7812C6F4CAE32A4