[{"from": "human", "value": "What is number-averaged molecular weight of given SMILES at room temperature and atmospheric pressure? ->  O=C(C1=C2SC(C3=CC(C(N(C[C@H](CCCCCCCCCC)CCCCCCCC)C4=C5SC=C4C6=CC=C(C)S6)=O)=C5S3)=C1)N(C[C@@H](CCCCCCCCCC)CCCCCCCC)C7=C2SC(C)=C7\n"}, {"from": "gpt", "value": " 5.52\n"}]