O=C([O-])CN1CCNCCN(CC(=O)O)CCOCC1    mol38067    -1_1
O=C([O-])CN1CC[NH2+]CCN(CC(=O)[O-])CCOCC1    mol38067    -1_2
O=C([O-])CN1CCNCC[NH+](CC(=O)[O-])CCOCC1    mol38067    -1_3
O=C([O-])CN1CCNCCN(CC(=O)[O-])CCOCC1    mol38067    -2_1