[{"from": "human", "value": "Given InChI, write its water solubility expressed as a logarithm in mol/L in 25 \u00b0C. ->  InChI=1S/C4H10/c1-3-4-2/h3-4H2,1-2H3\n"}, {"from": "gpt", "value": " -2.57\n"}]