InChI=1/C18H19NO4S/c1-22-16(20)14-15(19-9-5-6-10-19)13-11-7-3-4-8-12(11)24-18(13,14)17(21)23-2/h3-4,7-8,13H,5-6,9-10H2,1-2H3/t13-,18-/m1/s1 D581F917254A4BCB