User: I'm looking for the SMILES of a molecule that can be described by:
The molecule is a (13)C-modified compound that is urea in which the carbon is present as its (13)C isotope. It is a (13)C-modified compound and a one-carbon compound.
Assistant: This is a molecule that fits your description: N[13C](N)=O
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
diamino(113C)methanone
The molecule is a (13)C-modified compound that is urea in which the carbon is present as its (13)C isotope. It is a (13)C-modified compound and a one-carbon compound.