CCCCCC(O)C1C(=O)OC(C)C(O)/C=C/C=C/C=C/C=C\C=C(\C)C(O)CC(O)CC(O)CC(O)CC(O)CC(O)CC1O
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?