API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Moxifloxacin

Ethylester impurity(IH)

 ethyl 1-cyclopropyl-6-fluoro-1,4-dihydro-7-((4aS,7aS)-octahydropyrrolo[3,4-b]pyridin-6-yl)-8-methoxy-4-oxoquinoline-3-carboxylate Ethylester-impurity(IH)
Moxifloxacin

Methylester impurity(IH)

 methyl 1-cyclopropyl-6-fluoro-1,4-dihydro-7-((4aS,7aS)-octahydropyrrolo[3,4-b]pyridin-6-yl)-8-methoxy-4-oxoquinoline-3-carboxylate Methylester-impurity(IH)
Moxifloxacin

EP Impurity A

 1-cyclopropyl-6,8-difluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Moxifloxacin-EP-Impurity-A
Moxifloxacin

EP Impurity C

 1-cyclopropyl-8-ethoxy-6-fluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3, 4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Moxifloxacin-EP-Impurity-C
Moxifloxacin

EP Impurity B

 1-cyclopropyl-6,8-dimethoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b] pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid Moxifloxacin-EP-Impurity-B
Moxifloxacin

Methoxy Quinoline Impurity

 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylic acid Methoxy-Quinoline-Impurity
Moxifloxacin

Methoxy Quinoline Ester Impurity

 ethyl 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylate Methoxy-Quinoline-Ester-Impurity
Moxifloxacin

EP Impurity E

 1-cyclopropyl-6-fluoro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
Moxifloxacin

N-methyl impurity(IH)

 1-cyclopropyl-6-fluoro-1,4-dihydro-7-((4aS,7aS)-octahydro-1-methylpyrrolo[3,4-b]pyridin-6-yl)-8-methoxy-4-oxoquinoline-3-carboxylic acid N-methyl-impurity(IH)