Based on the SMILES O=C(O)C1C(C(=O)O)C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl, the molecule has no NR-Estrogen receptor alpha toxicity characteristics.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule has {toxicity_NR-ER#no &NULL}{toxicity_NR-ER__names__noun} {#properties|characteristics|features!}.