[{"from": "human", "value": "Write number-averaged molecular weight of given SMILES at normal measurement conditions.. ->  FC1=C(C2=CC(C3=CC=C(CC(CCCCCCCCCC)CCCCCCCCCCCC)S3)=C(C)S2)C4=NSN=C4C(C5=CC(C6=CC=C(CC(CCCCCCCCCCCC)CCCCCCCCCC)S6)=C(C7=CC(SC(C)=C8)=C8S7)S5)=C1F\n"}, {"from": "gpt", "value": " 2.16\n"}]