CCCOC(=O)c1cc(C(=CCC[C@H]2CC[C@@]3(C)[C@@H](CC[C@@H]4[C@@H]3CC[C@@]3(C)[C@H]4CC[C@@H]3C(C)CCCC(C)C)C2)c2cc(Cl)c(O)c(C(=O)OCCC)c2)cc(Cl)c1O
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?