CC(C)CC(NC=O)C(=O)NC(Cc1ccccc1)NC(=O)CNC(=O)C(C)NC(=O)C(N)Cc1ccc(O)cc1.O=C(O)C(F)(F)F
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?