CC(C)(CO)[C@@H](O)C(=O)NCCC(=O)[O-].CC(C)(CO)[C@@H](O)C(=O)NCCC(=O)[O-].[Ca+2]
For non-ionizable compounds Log P = Log D throughout pH range, whereas for ionizable compounds LogD takes into account the partition of both ionized and non-ionized forms.  What is logD of this molecule?