Cc1ccc(S(=O)(=O)N(CCNC(=O)c2cccc(O)c2O)c2cc3c4c(c2)Oc2cccc5c2C4(C)c2c(cccc2O3)O5)cc1
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?