This invention makes public that the five crystal forms of XLF-III-43 can be used as crude drugs, refers to the preparing methods of the five crystal forms of XLF-III-43 as crude drugs, refers to applying the sterling of the five crystal forms of XLF-III-43 and mixed crystals with different proportions as medicine active components to develop all kinds of medicines and compound medicines. In addition, this invention also refers to applying the crystal samples of XLF-III-43 as crude drugs to treat kidney dysfunction, cardiocerebral vessel diseases, hypertension, type II diabetic mellitus, complications of hypertension and diabetic mellitus, tumor, precancerosis, edema , and bring therapeutic effects by enhancing blood drug levels resulted from effects of crystal forms in the processes of treating all kinds of diseases.
