InChI=1/C15H16N2O4S2/c18-15(16-12-4-2-1-3-5-12)14-10-13(11-22-14)23(19,20)17-6-8-21-9-7-17/h1-5,10-11H,6-9H2,(H,16,18)/f/h16H 97259F767B4E2CB6