Cc1ncc(C[n+]2csc(CCOC(=O)CC34CC5CC(CC(C5)C3)C4)c2C)c(N)n1.Cl.[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?