The chemical with the SMILES O=[N+]([O-])c1ccc(Oc2ccc(-c3cnc4ccccc4n3)cc2[N+](=O)[O-])cc1 is not an inhibitor of factor XIa (FXIa).
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-846#not &NULL}{MUV-846__names__noun}.
O=[N+]([O-])c1ccc(Oc2ccc(-c3cnc4ccccc4n3)cc2[N+](=O)[O-])cc1
O=[N+]([O-])c1ccc(Oc2ccc(-c3cnc4ccccc4n3)cc2[N+](=O)[O-])cc1
2-[3-nitro-4-(4-nitrophenoxy)phenyl]quinoxaline