[{"from": "human", "value": "Given SMILES, write its Mw at room temperature and atmospheric pressure. ->  CC1=CC(C(CCCCCCCCCCCC)=C(CCCCCCCCCCCC)C2=C3SC4=C2SC5=C4C(CCCCCCCCCCCC)=C(CCCCCCCCCCCC)C6=C5SC(C7=CC(SC(C)=C8)=C8S7)=C6)=C3S1\n"}, {"from": "gpt", "value": " 9\n"}]