O=[N+]([O-])c1cccc2c1nnn2O mol26469 0_1 O=[N+]([O-])c1cccc2c1[nH+]nn2[O-] mol26469 0_2 O=[N+]([O-])c1cccc2c1[nH+]nn2O mol26469 1_1 O=[N+]([O-])c1cccc2c1n[nH+]n2O mol26469 1_2 O=[N+]([O-])c1cccc2c1nnn2[O-] mol26469 -1_1