Cc1cccc(C)c1NC(=O)CN(C)S(=O)(=O)c1ccc2[nH]c3c(c2c1)CCCC3
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?