Enrofloxacin Base

CAS number: 93106-60-6

Molecular formula: C19H22FN3O3

molecular weight: 359.4

Chemical structure:

Products name Enrofloxacin Base 
Shelf life 3 years
Items Specification Results
Appearance yellow or lighy orange-yellow, crystalline powfer yellow crystalline powder
Mekting point 221-226222.9--224.3
Identigication
HPLCthe retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. complies
IR The spectrum of sample conforms to that of the reference spectrumcomploes
Test 

Appearance of solution The solution is not more opalescent than reference suspension I and not more intensely coloured than reference solution Y or GYcomplies
Related substances
Cirprofloxacin not more than 0.5%0.08%
Unspecified impurity not more than 0.5%0.09%
total impurities not more than 0.7%0.2%
Loss on drying not more than 0.5%0.04%
residue on ignition not more than 0.2%0.05%
Heacy metals not more thab 0.02%less than 0.002%
Assaynot less than 99%99.5%
conclusion: the result conforma wih do not conform with the specifications