[{"from": "human", "value": "What is Mw of given SMILES at normal measurement conditions.? ->  CC1=CC2=C(C(OCC(CC)CCCC)=C(C=C(C3=C4C(C(C(C=C(C(C)(C)C)C=C5)=C5C4=O)=O)=C(C)S3)S6)C6=C2OCC(CCCC)CC)S1\n"}, {"from": "gpt", "value": " 40.1\n"}]