[{"from": "human", "value": "What is Monomer of given SMILES at normal measurement conditions.? ->  FC1=C(COOCC(CCCC)CC)SC2=C(C)SC(C3=CC(C4=C5SC(CC(CC)CCCCCCCC)=C4)=C(S3)C6=C5C=C(C7=C(C8=C9SC(CC(CC)CCCCCCCC)=C8)C=C(C)S7)C9=C6)=C21\n"}, {"from": "gpt", "value": " 2.5\n"}]