C[C@H]([NH3+])C(=O)N[O-]    mol9069    0_1
C[C@H](N)C(=O)NO    mol9069    0_2
C[C@H]([NH3+])C(=O)NO    mol9069    1_1
C[C@H](N)C(=O)N[O-]    mol9069    -1_1