Oxytetracycline Oxycycin Stevacin
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Item | Index | Result | ||||
Identification | a) TLC testformed | Conform | ||||
b) Color reaction with sulfuric acid | Conform | |||||
c) Chloride reaction with silver nitrate | Conform | |||||
Ph | 2.3-2.9 | 2.49 | ||||
Specific optical rotation | Between –188° and –200° | -193º | ||||
Absorbance: (353nm,E1%, 1cm) | Between 270 and 290 | 275 | ||||
Light absorbing impurity: | a) The absorbance at 430nm should not be greater than 0.50 | less than10 | ||||
b) The absorbance at 490nm should not be greater than 0.20 | ||||||
Related substances: | a) 4-epioxytetracycline≤0.5% | less than0.05 | ||||
b) Tetracycline:≤2.0% | ||||||
c) Total mixture of α,ß–apo-oxytetracycline ≤2.0% | ||||||
d) Peak on the tail of the main peak:2.0% | ||||||
Heavy metals | Not more than 50ppm | less than1 | ||||
Suphated ash | Not more than 0.5% | 0.01 | ||||
Water | Not more than 2.0% | 30.62 | ||||
Endotoxin | Not more than 0.4I.E./mg | 12.09 | ||||
Assay | Between 95.0% and 100.5% based on anhydrous substance | less than10 |
CAS NO:15170-74-8
CAS NO:15170-74-8
CAS NO:15170-74-8
CAS NO:15170-74-8
CAS NO:15170-74-8
CAS NO:15170-74-8
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