(GYZZ H20030878 )

C₁₉H₂₂FN₃O₄·CH₃SO₃H  471.50

 

[Appearance]White or Similar to white powder; odorless and bitter

 

 

[Examination]
Acidity:   pH: 3.0～4.5

Clarity and Color of Solution: It should not be more turbid than 2# turbidity standard; and should not be darker than yellow or Kelly 6# standard color solution.

Related Substances  No more than 1.0%

Moisture: No more than 1.0%

Residue on ignition No more than 0.2%

Heavy metal:   No more than 20/million

Residual menstruum: Toluene: No more than 0.089%, ethanol: No more than 0.5%

 

[Assay] Gatifloxacin (C₁₉H₂₂FN₃O₄): No less than 78.4%