The chemical with the SMILES O=S(=O)(Nc1nc2c(s1)CCCC2)c1ccc2ccccc2c1 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}.
N-(4,5,6,7-tetrahydro-1,3-benzothiazol-2-yl)naphthalene-2-sulfonamide