InChI=1/C13H11FN2O3S2/c1-9-8-15-13(20-9)16-21(18,19)12-5-4-11(14)7-10(12)3-2-6-17/h4-5,7-8,17H,6H2,1H3,(H,15,16)/f/h15H 262DD1B5DD858B77