InChI=1/C18H20BrNO4S/c1-12(2)11-17(18(21)22)20-25(23,24)16-9-5-14(6-10-16)13-3-7-15(19)8-4-13/h3-10,12,17,20H,11H2,1-2H3,(H,21,22)/p-1/t17-/m0/s1/fC18H19BrNO4S/q-1 DB44F6BD50963A47