Min.Order / FOB Price:Get Latest Price
1 Kilogram |
FOB Price: USD 3.0000 |
Product Name: Dirithromycin CAS No.: 62013-04-1 Place of Origin: Jiangxi China (Mainland)
Items |
Acceptance Criteria |
Results |
|
Character |
Appearance: White to almost white powder |
A white powder |
|
Identification |
Infrared absorption Spectrophotometry :the IR spectrum is consistent with that obtained with dirithromycin CRS |
|
|
The retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation as obtained in the assay |
|
||
Test |
Chromatographic Purity |
9-(S)-erythromycylamine ; no more than 1.5% |
0.2precent |
Any other individual impurity : not more than 1.0% |
Less than 1.0percent |
||
Total impurities : not more than 4.0 percent |
2.2 percent |
||
Dirithromycin 16S-epimer |
Not more than 1.5percent |
0.7precent |
|
Acetonitrile |
Not more than 0.1 percent |
Less than 0.1 percent |
|
Heavy metals |
Not more than 20ppm |
Less than 20ppm |
|
Water |
Not more than 1.0 percent |
0.5 percent |
|
Assay |
Dirithromycin contains not less than 96.0% percent and not more than 102.0 percent consisting of the 16R-and 16S-epimers .calculated on the anhydrous basis |
97.6 percent |
|
Conclusion |
This batch of Dirithromycin meets the specification of USP31 |
CAS NO:6080-56-4
CAS NO:6728-26-3
CAS NO:236117-38-7
CAS NO:50-56-6
CAS NO:55-56-1
CAS NO:1073-05-8
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View