['CCCCCC', 'O=S(=O)(Oc1ccc(O)cc1)c1cccs1', 'CCCCCCO', 'O=S(=O)(Oc1ccccc1)c1cccs1', 'O=S(=O)(O)c1cccs1', 'CCCCCCOc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(Oc1ccccc1)c1cccs1.