[{"from": "human", "value": "What is poly dispersity index of given SMILES at room temperature and atmospheric pressure? ->  CC1=C(C=C(S(=O)(CC(CCCCCC)CCCCCCCC)=O)S2)C2=C(C3=CC4=C(S3)C5=C(C6=CC=C(C[C@H](CCCC)CC)S6)C7=C(C(SC(C)=C8)=C8S7)C(C9=CC=C(C[C@@H](CCCC)CC)S9)=C5S4)S1\n"}, {"from": "gpt", "value": " 5.1\n"}]