C#CCOCCOCCOCCNc1nc(N2CCN(C(=O)Cn3cc(CC(C)O)nn3)CC2)nc(N2CCN(C(=O)[C@H](CCCCN)n3cc(CCC(=O)O)nn3)CC2)n1.Cl
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?