C/C(=N\N=C(N)N)c1c(C(=O)OCCCCCCOC(=O)c2nc3sccn3c2/C(C)=N/N=C(N)N)nc2sccn12
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?