Title:
Ｎ−アセチルノイラミン酸アンモニウム塩・無水和物の結晶及びその製造方法
Document Type and Number:
Japanese Patent JP6671305
Kind Code:
B2
Abstract:
According to the present invention, a crystal of ammonium N-acetylneuraminate anhydrate, and a process for producing a crystal of ammonium N-acetylneuraminate anhydrate, comprising adding or adding dropwise a solvent selected from the group consisting of alcohols and ketones to an aqueous N-acetylneuraminic acid solution containing an ammonium-containing compound and having a pH of 3.0 to 9.0 to precipitate a crystal of ammonium N-acetylneuraminate anhydrate, and collecting the crystal of ammonium N-acetylneuraminate anhydrate from the aqueous solution, can be provided.
Inventors:
Kazushige Fukumoto
Application Number:
JP2016572099A
Publication Date:
March 25, 2020
Filing Date:
January 27, 2016
Export Citation:
Assignee:
Kyowa Hakko Bio Co., Ltd.
International Classes:
C07H7/027; C07H1/06
Domestic Patent References:
| JP63028411B1 | ||||
| JP2235897A |
Other References:
Chemistry Letters,1984年,13(6),p.1003-1006
Attorney, Agent or Firm:
Patent business corporation glory patent office