[{"from": "human", "value": "Given SMILES, write its weight-averaged molecular weight at room temperature and atmospheric pressure. ->  CC1=CC2=C(C(SC(C3=C(F)C(F)=C(C)C4=NSN=C34)=C5)=C5C2(CC(CC)CCCC)CC(CC)CCCC)S1\n"}, {"from": "gpt", "value": " 50.0\n"}]