Erythromycin Thiocyanate:
CAS No.: 7704-67-8
Appearance: white or almost white crystalline powder.
pH-value: 6.0-8.0
Certificate Of Analysis: USP26 Edition
|
Item |
Standard(USP26) |
Test Result |
|
Characteristics |
Whit or almost white crystais or crystalline powder,Odourless,bitter in taste,slightlyhygroscopic |
Conform |
|
Identification |
The reaction is positive |
The reaction is positive |
|
PH |
6.0~8.0 |
6.48 |
|
Loss on drying |
≤6.0% |
4.2% |
|
Sulphated Ash |
≤1.0% |
0.2% |
|
Assay (On Dry Basis) |
ERYTHROMYCIN A ≥79% |
84.6% |
|
ERYTHROMYCIN B ≤2% |
0.8% |
|
|
ERYTHROMYCIN C ≤2% |
1.1% |
|
|
Assay |
≥750u/mg |
Anhydrous Potency, 783u/mg |
|
Hydrous Potency, 745u/mg |