COc1ccc2[nH]c3c(C)c4ccnc(NCCCN(C)CCCNc5ccc6ncn7c8ccccc8c(=O)c5c67)c4c(C)c3c2c1.CS(=O)(=O)O
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?