CC1=C(C(=O)OCc2ccccc2)C(/C=C/c2ccccc2)N2C(=O)CCSC2=N1
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?