InChI=1/C13H14N2O4S2/c14-20(16,17)12-8-6-11(7-9-12)10-15-21(18,19)13-4-2-1-3-5-13/h1-9,15H,10H2,(H2,14,16,17)/f/h14H2 0A86D9338B455460