The SMILES CCCc1nc2c(C)cc(-c3nc4ccccc4n3C)cc2n1Cc1ccc(-c2ccccc2C(=O)[O-])cc1 represents a molecule that is not identified as clinically toxic.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {clinical_toxicity#not &NULL}identified as {clinical_toxicity__names__adjective}.