FIELD: chemistry, pharmacology.
SUBSTANCE: claimed invention relates to water-free crystalline form 6-[[(3S,4R)-3,4-dihydro-3-hydroxi-6-[(3-hydroxiphenyl)sulfonyl]-2,2,3-trimethyl-2H-1-benzopyrane-4-yl]oxy]-2-methyl-3(2H)-pyridasinon, whose powder radiograph is in fact similar to radiograph, presented in Figure I, and on which there is at least one characteristic pinnacle with approximate values 2θ, selected from group, which consists of 10.5°, 15.0°, 17.2° and 22.8°, a well as to method of obtaining it and method of hair growing stimulation by introducing composition which is based on said crystalline form into mammal.
EFFECT: obtaining effective means, which stimulate hair growing.
9 cl, 8 dwg, 4 ex
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