InChI=1/C19H18N2O7S/c22-8-10-28-9-7-20-16(12-4-1-2-5-13(12)21(26)27)15(18(24)19(20)25)17(23)14-6-3-11-29-14/h1-6,11,16,22,24H,7-10H2/p-1/t16-/m1/s1/fC19H17N2O7S/h24h/q-1 90914D116272F99C