CCCCc1c(O)n(-c2ccc(OC)cc2)c(SCC(=O)Nc2ccc(C)cc2)nc1=O
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?