[2H]C([2H])([2H])C(C(=O)O)(C([2H])([2H])[2H])C([2H])([2H])[2H]    mol22199    0_1
[2H]C([2H])([2H])C(C(=O)[O-])(C([2H])([2H])[2H])C([2H])([2H])[2H]    mol22199    -1_1