The molecule with the SMILES representation of O=C1c2ccccc2-c2ccc3c4c(ccc1c24)-c1ccccc1C3=O displays no Ames mutagenic properties.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} {#shows|exhibits|displays!} {mutagenic#no &NULL}{mutagenic__names__adjective} properties.