What is the rat LD50 (oral exposure) value for the SMILES O=[N+]([O-])c1cc2nc(C(F)(F)F)[nH]c2cc1[N+](=O)[O-]: 4.260
What is the {acute_toxicity__names__noun} value for the {SMILES__description} {SMILES#}: {acute_toxicity#}