CCOC(=O)NC(=O)c1cn(CCCOC(=O)CCCCCCCCCCC(=O)OCCCn2cc(C(=O)NC(=O)OCC)c(=O)[nH]c2=O)c(=O)[nH]c1=O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?