Norfloxacin EP Impurity K

Chemical Name: Norfloxacin USP Related Compound K ; 6-fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid;

Synonym: 2-((2S,6aS,6bR,7S,8aS,8bS,11aR,12aS,12bS)-2,6b-Difluoro-7-hydroxy-6a,8a,10-trimethyl-4-oxo-2,4,6a,6b,7,8,8a,8b,11a,12,12a,12b-dodecahydro-1H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-8b-yl)-2-oxoethyl Acetate