USP
Related compounds:
*methacycline: ≤2%
*any impurity eluting before methacyline: ≤0.5%
*6-epidoxycycline: ≤2%
*any impurity eluting after the main doxycycline peak: ≤0.5%
Crystallinity: meets the requirements
PH: 5.0 ～ 6.5
Water: 3.6% ～ 4.6%
Assay: 880μg/mg ～ 980μg/mg
Ph Eur
PH: 5.0 ～ 6.5
Specific optical rotation: -113°～ -130°
Related substances: meets the requirements
Water: 3.6% ～ 4.6%
Heavy metals:≤50 ppm
Sulphated ash:≤0.4%
Related compounds:
*any impurity eluting before methacyline: ≤0.5%
*methacycline: ≤2%
*6-epidoxycycline:≤2%
*any impurity eluting after the main doxycycline peak: ≤0.5%
Assay: 95.0% ～ 102.0%
Action and uses: An antibiotic of tetracycline, and an wide-spectrum antibiotic, used in the treatment of infection of Gram-positive cocci or Gram-negative bacilli, also effective for Rickettsia infections such as typhus, tsutsug-amushi disease etc. And also effective for amebic dysentery and atypical pneumonia.
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