InChI=1/C11H10N2O4S/c14-10-8-6-7(2-3-9(8)12-11(10)15)18(16,17)13-4-1-5-13/h2-3,6H,1,4-5H2,(H,12,14,15)/f/h12H 8C6AE232897B70B3