O=C(O)C1(OC2(C(=O)O)CCCC2)CCCC1    mol11680    0_1
O=C([O-])C1(OC2(C(=O)O)CCCC2)CCCC1    mol11680    -1_1
O=C([O-])C1(OC2(C(=O)[O-])CCCC2)CCCC1    mol11680    -2_1