The molecule with the SMILES representation of O=C1OC2(c3cc(Br)c(O)cc3Oc3c2cc(Br)c(O)c3[Hg]O)c2ccccc21 exhibits no carcinogenic properties.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} {#shows|exhibits|displays!} {carcinogen#no &NULL}{carcinogen__names__adjective} {#properties|effects!}.