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In this text, the new crystal forms of geffitinib were explored through evaporation solution crystallization experiment. The formation of salts was confirmed by the single crystal X-ray diffraction, powder X-ray diffraction, thermo gravimetric analysis and differential scanning calorimetry, Raman spectroscopy, hot-stage microscopy and Hirshfeld surface analysis. Furthermore, Hirshfeld surface analysis confirmed that the driving force and supporting force for the formation of crystals were C-C, C-H, N-H, H-H, O-H and Cl-H interactions. The dissolution rate of the new salts of gefitinib in phosphate buffer of pH 6.8 was evaluated, and the results showed a significant increase in solubility.

Capturing two new salts of the anticancer drug gefitinib