[{"from": "human", "value": "What is number-averaged molecular weight of given SMILES at room temperature and atmospheric pressure? ->  CC1=CC2=C(C(C=C(N(C(CCCCCCCC)CCCCCCCC)C3=C4C=C5C(C(SC(C6=CC=C(C7=CC=C(C8=CC=C(C)S8)C9=NSN=C79)S6)=C%10)=C%10C5(CCCCCCCC)CCCCCCCC)=C3)C4=C%11)=C%11C2(CCCCCCCC)CCCCCCCC)S1\n"}, {"from": "gpt", "value": " 14.1\n"}]