User: I need a molecule that is not an oxidizer.
Assistant: Here is a molecule that is not an oxidizer: Nc1cc([N+](=O)[O-])ccc1O.
User: I need a molecule that is {H272#not &NULL}{H272__names__noun}.
Assistant: Here is a molecule that is {H272#not &NULL}{H272__names__noun}: {SMILES#}.