[{"from": "human", "value": "Write weight-averaged molecular weight of given SMILES at normal measurement conditions.. ->  CC1=CC=C(C2=CC=C(C3=CC=C(C4=CC=C(C5=CC=C(C)S5)C6=NSN=C64)S3)C=C2C7(CC(CC)CCCC)CC(CC)CCCC)C7=C1\n"}, {"from": "gpt", "value": " 11.3\n"}]