InChI=1/C14H20N2O4S/c1-7-8(2)21-12(11(7)13(18)19)16-14(20)15-9-4-3-5-10(17)6-9/h9-10,17H,3-6H2,1-2H3,(H,18,19)(H2,15,16,20)/p-1/t9-,10+/m1/s1/fC14H19N2O4S/h15-16H/q-1 4567F3CD702BEA78