Based on the SMILES representation C1=CCN=C1, the molecule can be described as:
The molecule is that one of the three tautomers of pyrrole which has the double bonds at positions 1 and 3. It is a tautomer of a 3H-pyrrole and a 1H-pyrrole.
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule can be described {#by|as!}:
{description#}
2H-pyrrole
The molecule is that one of the three tautomers of pyrrole which has the double bonds at positions 1 and 3. It is a tautomer of a 3H-pyrrole and a 1H-pyrrole.