CC(C)(CNCC(C)(C)C(=O)O)C(=O)O    mol38051    0_1
CC(C)(C[NH2+]CC(C)(C)C(=O)O)C(=O)[O-]    mol38051    0_2
CC(C)(C[NH2+]CC(C)(C)C(=O)[O-])C(=O)[O-]    mol38051    -1_1
CC(C)(CNCC(C)(C)C(=O)O)C(=O)[O-]    mol38051    -1_2