The chemical with the SMILES O=C1c2ccccc2C(=O)N1c1ccc(Cl)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=C1c2ccccc2C(=O)N1c1ccc(Cl)cc1
O=C1c2ccccc2C(=O)N1c1ccc(Cl)cc1
2-(4-chlorophenyl)isoindole-1,3-dione