InChI=1/C11H12ClN4O4S/c1-6-10(7(2)20-14-6)21(18,19)15-13-11(17)9-4-8(12)5-16(9)3/h4-5H,1-3H3,(H,13,17)/q-1/f/h13H 9218C0CD3ADEEE11