The SMILES O=C1OC(=O)c2cc(-c3ccc4c(c3)C(=O)OC4=O)ccc21 is not toxic in the aryl hydrocarbon receptor assay.
The {#molecule |!}{SMILES__description} {SMILES#} is {toxicity_NR-AhR#not &NULL}{toxicity_NR-AhR__names__adjective}.