CC1=NN(C(=O)CC(=O)N(C(=O)c2ccccc2)c2ccc(Cl)cc2)C(=O)C1/N=N/c1ccc([N+](=O)[O-])cc1
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?