Method for purifying rocuronium bromide
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United States of America Patent
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May 5, 2015
Grant Date -
Jul 17, 2014
app pub date -
Apr 25, 2011
filing date -
Apr 25, 2011
priority date (Note) -
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Abstract
Provided is a method for purifying rocuronium bromide, which comprises: formulating crude rocuronium bromide to be purified into an aqueous solution, distilling off excess residue solvents at reduced pressure, absorbing by adding active carbon or silica gel, then filtrating, quick freezing the filtrate into ice, and then lyophilizing to obtain rocuronium bromide.
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