CCc1cc(Cc2cc(Cl)c(NC(=O)C(=O)C3NC(=O)NC3=O)c(CC)c2)cc(Cl)c1NC(=O)C(=O)C1NC(=O)NC1=O
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. How many hydrogen bond acceptors does the molecule contain?