InChI=1/C14H14N4O4S/c1-17-12(21)9(13(22)18(2)14(17)23)7-15-16-11(20)8-5-3-4-6-10(8)19/h3-7,15,19H,1-2H3,(H,16,20)/f/h16H 07CFF30FDD647E0C