[{"from": "human", "value": "What is PDI of given SMILES at room temperature and atmospheric pressure? ->  CC1=CC(N2C(CCCCCCCC)CCCCCCCC)=C(S1)C(C2=C3)=CC4=C3C5=C(N4C(CCCCCCCC)CCCCCCCC)C=C(C6=C(C(N(CC(CC)CCCC)C7=O)=O)C7=C(C)S6)S5\n"}, {"from": "gpt", "value": " 3.49\n"}]