C[C@H]([C@H]([NH3+])C(=O)[O-])C(F)(F)F    mol5491    0_1
C[C@H]([C@H](N)C(=O)O)C(F)(F)F    mol5491    0_2
C[C@H]([C@H]([NH3+])C(=O)O)C(F)(F)F    mol5491    1_1
C[C@H]([C@H](N)C(=O)[O-])C(F)(F)F    mol5491    -1_1