1. 简体中文
  2. English
语言入口:
产品介绍:

亚洲城官网-盐酸多西环素

发布者::明续英  发布时间: :2012-02-13 19:06  浏览次数: :
产品介绍:
产品规格: 10592-13-9
详细说明:
无图片信息!
亚洲城官网-盐酸多西环素

英文名:Doxycycline Hyclate
化学名: 6-甲基-4-(二甲氨基)-3,5,10,12,12a-五羟基-1,11-二氧代-1,4,4a-5,5a- 6,11,12a-八氢-2-并四苯甲酰胺盐酸盐半乙醇半水合物
分子式:C22H24N2O8·HCl·1/2C2H5OH·1/2H2O
分子量:512.93
性 状:淡黄色至黄色结晶性粉末;无臭,味苦
类 别:四环素类抗生素
 


 

USP

Crystallinity                        meets the requirements
pH                              2.0 ~ 3.0
Water                             1.4% ~ 2.8%
Related compounds:
   *methacycline                     ≤2%
   *any impurity eluting before methacycline        ≤0.5%
   *6-epidoxycycline                   ≤2%
   *any impurity eluting after the main peak        ≤0.5%
Assay                             800μg/mg ~ 920μg/mg

 

Ph Eur

pH                            2.0 ~ 3.0
Specific optical rotation                 -105°~ -120°
Specific absorbance                    300 ~ 335
Light-absorbing impurities                The absorbance examined at
   (anhydrous and Ethanolfree substance)        490nm is maximum 0.07
Related substances: *impurity A              ≤2.0%
           *impurity B              ≤2.0%
           *impurity C,D,E,F           ≤0.5%
           *any other impurity          ≤0.5%
           *disregard limit            ≤0.1%
           *ethanol                4.3% ~ 6.0%
Heavy metals                         ≤50 ppm
Water                            1.4% ~ 6.0%
Sulphated ash                         ≤0.4%
Bacterial endotoxins                      ≤1.14IU/mg
Assay (anhydrous and ethanol-free substance)       95.0% ~ 102.0%

   明 续 英  13667291122    027-68886670  传 真:027-88048077 
   叶    飞  13720251679    027-68886406  传 真:027-68886696
   邮    箱 mingzihui123@163.com     MSN: yuancheng@live.cn


Copyright © 2000-2010 鄂ICP备10014871号-13. 武汉远成共创科技有限公司 版权所有 Powered by chinaycg © 2000-2010 chinaycg Inc.