Cc1cccc(N2CCN(C(=O)CCCCCn3c(=S)[nH]c4ccc(N5CCOCC5)cc4c3=O)CC2)c1C
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?