Product Brief Introduction
Product name: Doxycycline Hydrochloride
CAS: 10592-13-9
MF: C22H25ClN2O8
MW: 480.896
Product Specification
|
Item |
Specification |
|
Appearance |
Light yellow to yellow crystalline powder |
|
Identification
|
IR: The infrared absorption spectrum of the sample complies with the reference standard. |
|
HPLC:The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. |
|
|
UV: The absorption maximum at 269nm and 354nm, the absorption minimum at234nm and 296nm |
|
|
It gives positive reaction |
|
|
PH |
2.1~2.9 |
|
Moisture |
1.6%~2.9% |
|
Residue on Ignition |
≤ 0.2% |
|
Reducing Substances |
Metacycline≤ 2.0% |
|
B-doxycycline≤ 2.0% |
|
|
Other single impurities≤ 2.0% |
|
|
Total impurities≤ 5.0% |
|
|
The absorbance of impurities at 490nm should not exceed 0.10 |
|
|
Ethanol: 4.4%~5.9% |
|
|
Heavy Metals |
≤ 20ppm |
|
Assay (on dried basis) |
88.5%-93.5% |
