Cc1cccc(NC(=O)Nc2ccc(-c3csc4c(-c5ccc(NC(=O)CCCN(C)C)cc5)cnc(N)c34)cc2)c1
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?