FIELD: chemistry.
SUBSTANCE: claimed is a cocrystalline form of fenbufen with pyrazinamide, where molar ratio of fenbufen with pyrazinamide constitutes 1:1, which has an endothermal peak from 148 to 152°C by the data of measurements by means of differential scanning calorimetry and peaks at 2θ(°) 7.38, 10.43, 11.04, 21.67 by the data of measurement of polycrystal X-ray radiation diffraction.
EFFECT: increased rate and level of solubility of the crystalline form of fenbufen and its suitability for application in the pharmaceutical industry.
2 ex, 7 dwg
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