[{"from": "human", "value": "Given SMILES, write its weight-averaged molecular weight at room temperature and atmospheric pressure. ->  CC(S1)=CC2=C1C(CCC(CCCCCC)CCCC)=C(C=C(C3=CC=C(C4=C(F)C(F)=C(C5=CC=C(C)S5)C6=NN(CC(CCCCCC)CCCC)N=C64)S3)S7)C7=C2CCC(CCCC)CCCCCC\n"}, {"from": "gpt", "value": " 99.6\n"}]