4-Hydroxy Atorvastatin calcium salt

[O-]C(C[C@H](O)C[C@H](O)CCN1C(C2=CC=C(C=C2)F)=C(C3=CC=CC=C3)C(C(NC4=CC=C(C=C4)O)=O)=C1C(C)C)=O.[O-]C(C[C@H](O)C[C@H](O)CCN5C(C6=CC=C(C=C6)F)=C(C7=CC=CC=C7)C(C(NC8=CC=C(C=C8)O)=O)=C5C(C)C)=O.[Ca+2]