FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to crystalline prothioconazole monosolvate with DMSO (1:1), as well as to amorphous form of prothioconazole. Crystalline prothioconazole monosolvate with DMSO is obtained by dissolution of prothioconazole in DMSO with heating, with the following cooling with addition of one or several anti-solvents, suitable for crystallisation of monosolvate with DMSO, with further separation of target substance crystals. Amorphous form of prothioconazole is obtained by heating crystalline prothioconazole to melting and cooling melted prothioconazole, with precipitation being carried out at rate 3-20°C/min. Invention also relates to antimicrobial compositions, containing crystalline prothioconazole monosolvate with DMSO (1:1) or amorphous form of prothioconazole in effective quantity with one or several surfactants. Antifungal compositions are obtained by mixing effective quantity of crystalline prothioconazole monosolvate with DMSA or amorphous form of prothioconazole with filling agent or surfactants. Crystalline prothioconazole monosolvate with DMSO (1:1) and amorphous form of prothioconazole are applied in agriculture for control of undesirable microorganisms.
EFFECT: novel solid forms of prothioconazole, possessing high solubility.
44 cl, 7 dwg, 2 tbl, 4 ex
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