LFX09B: Levofloxacin EP Impurity I (Base)

Levofloxacin 9-Piperazinyl Isomer ;

(-)-(S)-10-Fluoro-2,3-dihydro-3-methyl-9-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid ;

CAS # 178912-62-4 (base) ;

C18H20FN3O4 (base) ; MW: 361.37 ;