The molecule with the SMILES O=C(O)/C=C/c1coc2ccccc2c1=O 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=C(O)/C=C/c1coc2ccccc2c1=O
O=C(O)/C=C/c1coc2ccccc2c1=O
(E)-3-(4-oxochromen-3-yl)prop-2-enoic acid