CCCCC/C=C\C/C=C\C=C\C=C\[C@@H](SCC(NC(C)=O)C(=O)O)[C@@H](O)CCCC(=O)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?