Process for the purification of chenodeoxycholic acid
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United States of America Patent
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May 25, 1982
Grant Date -
N/A
app pub date -
Jul 11, 1980
filing date -
Jul 12, 1979
priority date (Note) -
Expired
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Abstract
Process for preparing chenodeoxycholic substantially free from impurities and from solvents; crude chenodeoxycholic acid is subjected to crystallization from a solvent selected in the group consisting of mono-and polyhalogenated aliphatic hydrocarbons containing from 1 to 5 carbon atoms and that, if desired, the thus obtained product is dissolved in a water-miscible organic acid having low molecular weight and the thus obtained solution is poured into water, the precipitate is poured into water, the precipitate is collected by filtration, washed with water and dried.
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