[{"from": "human", "value": "What is poly dispersity index of given SMILES at room temperature and atmospheric pressure? ->  CC1=CC=C(S1)C(C2=NSN=C23)=CC=C3C4=CC=C(C5=CC=C6C7=CC8=C(C=C7C(CCCCCC)(CCCCCC)C6=C5)C9=CC%10=C(C(C=CC(C%11=CC=C(C)C=C%11)=C%12)=C%12C%10(CCCCCC)CCCCCC)C=C9C8(CCCCCC)CCCCCC)S4\n"}, {"from": "gpt", "value": " 1.75\n"}]