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Errors are found in the authors published equation coefficients for the modified Apelblat equation. Backcalculated mole fraction solubilities based on the published equation coefficients differ significantly from the back-calculated values that the authors reported. 1 (10)

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Several mathematical errors in the published paper by Zhao and co-workers are identified. The errors pertain to the calculated equation coefficients for the polynomial version of the combined nearly ideal binary solvent (CNIBS)/Redich-Kister and for the Combined Jouyban–Acree–van’t Hoff equation. In the case of the CNIBS/Redlich–Kister equation the authors’ tabulated equation coefficients give 100 times the mole fraction solubility of olaparib, and not the mole fraction solubility as the authors’ equation implies.