O=[N+]([O-])c1nnn(Cc2nnn[nH]2)n1    mol35942    0_1
O=[N+]([O-])c1nnn([CH-]c2nnn[nH]2)n1    mol35942    -1_1
O=[N+]([O-])c1nnn(Cc2nnn[n-]2)n1    mol35942    -1_2