PROCEDE DE PREPARATION DE FORME A DE PENTAHYDRATE DE CHLORURE DE METHYLTHIONIUM SUBSTANTIELLEMENT PUR

• 收藏
• 分享

专利权人:

WISTA LABORATORIES LTD.

发明人:

HILFIKER, ROLF,RAGER, TIMO

申请号：

CA2773306

公开号：

CA2773306C

申请日:

2010.09.23

申请国别(地区):

CA

年份:

2018

代理人:

摘要：

Substantially pure methylthioninium chloride pentahydrate form A is prepared from methylthioninium chloride by phase equilibration of suspensions, crystallization or solvent evaporation, whereby the water content of the solvent corresponds to a water activity of at least 0.4 at 25°C, and controlled drying of said methylthioninium chloride pentahydrate form A within its stability ranges of humidity, pressure and temperature.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/