Task: Answer the following question about the molecule with SMILES CCCCCCCCCCCCCCCC[n+]1ccccc1.
Request: What is the definition of this compound's USAN stem?
Completion: quaternary ammonium derivatives
Task: Answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
CCCCCCCCCCCCCCCC[n+]1ccccc1
CCCCCCCCCCCCCCCC[n+]1ccccc1
1-hexadecylpyridin-1-ium
What is the definition of this compound's USAN stem?