C[C@@H](OC(C)(C)C(=O)O)C(=O)O    mol10019    0_1
C[C@@H](OC(C)(C)C(=O)[O-])C(=O)O    mol10019    -1_1
C[C@@H](OC(C)(C)C(=O)O)C(=O)[O-]    mol10019    -1_2