CC(C)[C@@H]1CN=C(N)N1C[C@@H]1CCCN1C[C@H](C)N1C[C@@H](Cc2ccccc2)N(CCc2ccc(Cl)c(Cl)c2)C1=N
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?