InChI=1/C20H17ClN4O4/c21-13-1-6-17-16(9-13)12(11-23-17)7-8-22-18-10-19(26)24(20(18)27)14-2-4-15(5-3-14)25(28)29/h1-6,9,11,18,22-23H,7-8,10H2/p+1/t18-/m1/s1/fC20H18ClN4O4/h22H/q+1 C844E7CEFEA7D5DE