InChI=1/C9H6N6O4S2/c10-21(18,19)9-13-12-8(20-9)14-15-6(16)4-2-1-3-11-5(4)7(15)17/h1-3H,(H,12,14)(H2,10,18,19)/f/h14H,10H2 7D6C9969CE6A9AD2