InChI=1/C26H26N4O4S/c1-33-25(32)23(24-28-19-11-5-6-12-20(19)29-24)22(31)16-35-26-27-14-21(17-8-3-2-4-9-17)30(26)15-18-10-7-13-34-18/h2-6,8-9,11-12,14,18,23H,7,10,13,15-16H2,1H3,(H,28,29)/t18-,23+/m0/s1/f/h28H 3B51A3A1774ACF50